Indian Institute of Technology, Kharagpur

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This is a collection of articles archived for the excellence of their content.


What makes it the best ?

Why is it considered the best Indian Institute of Technology- some reasons“India Today” 26/6/2017

See graphic:

Why is it considered the best Indian Institute of Technology- some reasons

Character building

2018: Lessons in humility

Somdatta Basu, IIT students get lesson in humility dining hall, April 3, 2018: The Times of India

When third-year IIT-Kharagpur student Krushi Bandi served lunch to mess worker Sanjay Modak at the institute’s Lal Bahadur Shastri Hall, it wasn’t merely a temporary reversal of roles. For the institute, which churns out tech graduates who vie for multi-million-rupee starting salaries, this role reversal was meant to be a lesson in humility, a way of telling its students that life was worth more than the CGPAs — and the millions — earned.

The oldest IIT has embarked on a unique programme to instil in its students life lessons that go beyond the chapters learnt in classrooms. Students have been waiting on their “mess bhaiyas” — and serving food to those who wait on them throughout the year — in hostels on the campus as part of a programme that started in March and will continue through the year.

“It was a special moment for me,” Bandi said. “After serving lunch to the person who fed me all through the past three years and ensured that I never went to bed on an empty stomach, we sat next to each other for dinner,” the third-year metallurgical engineering student added.

As many as 5,000 students across the eight students’ hostels — called halls on the IIT campus — have already taken part in this initiative. The other halls will pick up the thread after July, when a new batch joins. Learning to give back to society was the idea behind the move, according to Institute Wellness Group, which is dedicated to building a united community on the campus.

The month-long activity saw participation from even the administrative staff; hall management committees, administrative staff and hall wardens have all come together, spending quality time together. So, when Rajendra Prasad Hall of Residence warden Uday Shankar shared the table with the mess dadas, a mess worker could not hold himself back, saying how he had never experienced anything like this in 11 years of service.

Teachers feel this adds to privileged youngsters’ awareness of things like dignity of labour and the importance of humane behaviour towards the less privileged.



National Institutional Ranking Framework (NIRF): ranked No. 3

The Times of India, April 14, 2016

The rankings under the National Institutional Ranking Framework (NIRF) have been carried out in four categories: Engineering, management, pharmacy and university.

There were five key parameters on which an academic institutes were assessed, these include: Teaching, learning and resources; Research, consulting and collaborative performance; Graduation outcome; Outreach and inclusivity; and Perception.

Over 3,500 institutes participated in inaugural edition of these rankings, the process for which started in December 2015.

The oldest IIT in the country IIT Kharagpur gets a weightage of 83.91. It was established in the year 1951


Superpower drone BHIM

Jhimli Mukherjee Pandey , IIT-Kharagpur develops superpower drone BHIM, March 21, 2017: The Times of India


BHIM can create a Wi-Fi zone within a radius of 1-km when it flies overhead

The automated drone has an actual vision-based guidance with built-in intelligence

The real edge of BHIM lies in its ability to maintain long flight times and drop emergency supplies by using parachutes

KOLKATA: The might and muscle of Mahabharata's epic warrior Bhima continues to be an inspiration, even to the country's premier tech school.

A research group at IIT Kharagpur has designed the country's first indigenous superpower drone and named it after the second Pandava. It's just under a metre in length, but its uniqueness lies in the unmanned aerial device's state-of-the-art protection shield, superior imagery and hitherto unknown abilities, say its creators.

BHIM can create a Wi-Fi zone within a nearly 1-km radius when it flies overhead. Aimed for conflict zones, the drone -which has a battery backup of seven hours -can fly into a disaster (or war) zone and create a seamless communication network for security forces, rescue personnel and even the common man.

The real edge of BHIM lies in its ability to maintain long flight times and drop emergency supplies by using parachutes. It can also be used for rescue operations in remote and hard-to-access areas. The drone can conduct integrity checks for boundary walls and find out breaches, if any.

Designed especially for emergency situations, the automated drone has an actual vision-based guidance with built-in intelligence that helps it identify if an area is crowded or not. It will then fly away and land in a safer place.

"Such advanced built-in intelligence is not available in drones now. The design is completely in-house. The controlling and guiding algorithms of the drone have been developed in our lab," said Sudip Mishra, a faculty member of the computer science and engineering department, who led the research along with another faculty member, N S Raghuvanshi, and research scholars Anandarup Mukherjee and Arijit Roy.

Researchers at IIT-Kharagpur took care to keep the drone lightweight, but with strong body movements, made of off-the-shelf indigenous components. This ensures that it costs just one-fourth the price of any average drone used for surveillance in India now.The drone was shown to Defence Research and Development Organisation when a team visited the institute to inspect network securities solutions that IIT-Kharagpur had developed.

"Disaster management becomes much easier through seamless wireless communication that only the internet can provide. However, when disaster strikes and Wi-Fi facilities on the ground are destroyed, an aerial Wi-Fi broadcast can come as a boon since radio communication has limited reach," said Sudip Mishra, a faculty member of the computer science and engineering department. Anyone within the specific radius can log on to the drone and efforts are on to increase this reach.

BHIM has been built by using the "internet of things" -the inter-networking of physical devices, vehicles, buildings and other items embedded with electronics, software, sensors, actuators and network connectivity -which enables these objects to collect and exchange data. "These days, you hear of intelligent buildings and smart cities built using IoT technology. It means everyone and everything is connected wirelessly ," Mishra explained.


Indian Researchers Develop World’s Strongest 4D Printed Parts, September 11, 2018: MANUFACTUR3D

Above- Prototype being 4D printed in an FDM 3D printer- Image Credit- Bijaya Bikram Samal
From: Indian Researchers Develop World’s Strongest 4D Printed Parts, September 11, 2018: MANUFACTUR3D
Above- Image shows the differences in one, two, three and four-dimensional objects-Image Credit- Sculpteo
From: Indian Researchers Develop World’s Strongest 4D Printed Parts, September 11, 2018: MANUFACTUR3D
Above- 4D printed parts show shape changing capabilities when immersed in hot water-Image Credit- Bijaya Bikram Samal
From: Indian Researchers Develop World’s Strongest 4D Printed Parts, September 11, 2018: MANUFACTUR3D
Above- 4D printed sample before and after compression test-Image Credit- Bijaya Bikram Samal
From: Indian Researchers Develop World’s Strongest 4D Printed Parts, September 11, 2018: MANUFACTUR3D
Above- Compression test result graph-Image Credit- Bijaya Bikram Samal
From: Indian Researchers Develop World’s Strongest 4D Printed Parts, September 11, 2018: MANUFACTUR3D

Two Indian researchers from the Veer Surendra Sai University of Technology, Burla, Odisha, have developed two 4D printed prototypes, which the researchers claim, are the world’s first & strongest prototypes built to date.

The prototypes are made from PLA material which is embedded with shape memory alloys (SMA) Ni-Ti and fabricated using FDM 3D printing technology. The Ni-Ti sheet adds strength to these 4D printed parts. A strength report of these parts shows that these 4D printed parts have a compressive strength of 150MPa which is closely equivalent to high strength concrete.

The researchers Bijaya Bikram Samal and Anita Jena under the guidance of Prof. Debadutta Mishra of the Veer Surendra Sai University of Technology have created prototypes of biocompatible and biodegradable materials and they actuate when put in hot water.

The first prototype is a simple “self-folding origami structure” with some design considerations, which successfully actuated to form the final part. The second one is a practically usable prototype “3 Jaw robotic gripper” which has been used to pick an object in hot water without using any bulky motors. The remarkable results obtained from this research can have a paradigm shift in the way we manufacture products.

What is 4D Printing?

4D printing relates to an advanced version of 3D printing where the fourth dimension is Time. This fourth dimension refers to the concept of self-assembly wherein the 3D printed object can reshape or self-assemble itself on the application of an external passive energy like heat, gravity, magnetics, or simply hot water.


The research was undertaken to find the solutions to some of the underlying problems of the 3D printed parts. The components can change their shape when heat is provided to it which paves its application to environments where maintenance is very difficult like space and biomedical engineering where stents can be manufactured using this technology which can save millions of lives.

It has its application in piping, earthquake-resistant building and structures, soft robotics and what not. Future products will be self-assembling, self-healing, self-replicating and reconfigurable which will provide all materials the ability to cope up with the changing and challenging environment. In this research PLA based 3D printed parts with embedded Ni-Ti SMA sheet were fabricated using 4D printing technology.


This research focuses on the basic capabilities of the emerging 4D Printing technology. Among various methods of getting 4D printed components, 3D printing with embedding smart materials has been utilized in this work. For embedding the SMA sheet into the PLA based 3D printed objects, the Ni-Ti SMA sheet has to be cut and micro-drilled. Therefore three different machining operations have been performed using Wire EDM, LASER, and ECM. Optimization of the three processes has been done based upon which confirmation test is conducted and the material is prepared. After that 3D printing process is used and the sheet is embedded within it during the printing hence giving 4D printed components.

Why is this research unique?

A lot of research on 4D printing is being carried out across various universities of the world but let us explain why this research is unique:

Firstly, an increasing number of researchers are carrying out research on 4D printing around the world but none of their prototypes exhibit a high strength product which can be used as a mechanical component.

Secondly, none of them have a practical application.

Thirdly, no research has ever used shape memory alloy with PLA material for 4D Printing.

And lastly, no other research has claimed their 4D Printed prototype as fully bio-degradable and bio-compatible. Both the prototypes in this new research are bio-degradable and bio-compatible so that can be used further in making user-friendly and user-safe prosthetics and stents.

Major challenges in 4D Printing

No simulation software and API: There is an absence of a simulation software which can clearly show how the 4D printed part will behave when it comes in contact with an external stimulus like heat, gravity, magnetics, etc. Such a unique software can help in overcoming a big hurdle. This will not only quicken the pace of research but also save a lot of costly resources. It will help in optimising the complete process.

There is no separate API (Application Programming Interfaces) which will enable the designers to define the characteristics of the materials they are made from.

High initial cost: 4D printing demands heavy initial monetary resources. As compared to the western countries where there is a dearth of funding for research. In the Asia Pacific region, and especially in India, research is mostly seen as an activity for large corporations and funding is always in short supply.

4D printing, no doubt, has high initial cost compared to 3D printing but given the fact that it also provides better functionalities, high productivity, reliability & high product life, it actually offers a better trade-off than 3D printing.

Moreover, products made using this technology unlike 3D Printed objects are not static and hence can have unprecedented applications in all fields of science and engineering.

Future Implications

This is just a beginning to understand the capabilities of 4D printing which will enable the design of a completely new system. This is an emerging technology having a lot of possible future applications like as follows:

Soft Robotics: Robotic grippers, like the ones created in this research, for use in industries can have a significant impact on the functionality.

Aerospace and Aviation

Space: In environments and conditions where access for manual repair is limited, conditions which are hostile like space it can be used for self-healing of materials. 4D printing with origami and kirigami will enable us to make anything in 2D shape easily carry it to space then add hot water or provide heat by electrical resistance to it and it will transform into a 3D object of your use.

Morphing Aircrafts: Since birds are the source of inspiration for airplane development, airplanes should, supposedly, look more like birds in order to become more energy efficient. However, airplanes today look quite different from birds in many aspects as through experiments and comparison between airplanes and birds, researchers have found that airplanes can achieve better efficiency if they can “behave” more like birds in flight, and morphing technology makes it possible.

It can be only possible by 4D printing technology as this provides a very good chance for us to make things that can change its shape and size according to a specific stimulus.


Stents: This technology can be used in healthcare for advanced nanoscale stents and drug delivery system. The 4D printed stent can be maneuvered to a spot and then made to change form by application for a stimulus. For example, 4D printed stent that is introduced into an artery and when ultrasound energy is applied it balloons up to its needed configuration

Better Prosthetics: Electroactive components for artificial limbs. An applied voltage changes the configuration of the 4D printed part so that it expands, contracts or bends. The motion is smoother and more lifelike than movement generated by mechanical devices.

Consumer Goods

Transformative Shoes or Garments:

Imagine a single shoe which can be used for multiple activities. If you start running, it adapts to being running shoes, if you play basketball, it adapts to support your ankles, if you walk on grass, it grows cleats, and if it is raining, it becomes waterproof.

Adaptable Tyre Compound: These tyres will be all water tyre which can change according to different road conditions.

Piping: Current pipe system is very rigid. To cater for higher flow capacity, we have to replace the whole pipeline. An adaptive 4D manufacturing capability to produce capacity adaptable pipes pipping with a variable diameter as per demand can significantly increase the flow efficiency.

This technology provides a lot of flexibility and customization to a product in a very short manufacturing lead time with the dynamic characteristics of changing its structure, functionality and adaptable to the environment that can be utilized to achieve maximum efficiency in any field of its usage. About Researchers:

Prof. Debadutta Mishra:

He is a professor at the Department of Production Engineering, Veer Surendra Sai University of Technology, Burla. He is also the Dean (Students Welfare) at the institution. He has about 27 years of experience in academia and research. He has completed many research projects funded by UGC, DST and other reputed organizations. He has many publications in reputed journals and conferences. He is also the head of Idea and Innovation club of the institution, which has made significant developments under his able guidance in different fields of engineering.

He did his Ph.D. from Sambalpur University, Odisha, M.Tech from National Institute of Technology, Rourkela and B.Tech from College of Engineering and Technology, Odisha.

Bijaya Bikram Samal:

He is presently a Ph.D. scholar working on 4D printing and micro manufacturing at Indian Institute of Technology, Kharagpur. He is an M.Tech Gold medalist from the first engineering college of Odisha i.e Veer Surendra Sai University of Technology (Formerly University College of Engineering) Burla during which he worked on novel 4D Printing technology to make two important prototypes. He did his B.Tech from the Biju Patnaik University of Technology, Odisha during which he worked on making a low-cost FDM 3D printer.

Anita Jena:

She is presently a Ph.D. scholar working on micro machines at Indian Institute of Technology, Kharagpur. She did her M.Tech from the Veer Surendra Sai University of Technology, Burla, Odisha during which she actively worked on many smart materials especially shape memory alloys and had developed an engine, which uses SMA to produce power from waste hot water. She completed her B.Tech from the Biju Patnaik University of Technology, Odisha during which she worked on making a low-cost FDM 3D Printer.

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