TTK Center for Rehabilitation Research and Device Development (R2D2)

Indian Institute of Technology Madras


R2D2 is the TTK Center for Rehabilitation Research and Device Development at IIT Madras, headed by Prof. Sujatha Srinivasan of the Department of Mechanical Engineering. The group is involved in research related to human movement, and the design and development of rehabilitation and assistive devices for people with movement impairments.

R2D2 engineers affordable products for rehabilitation needs in India and beyond, works with clinical specialists, NGOs, hospitals, etc., to field-test the designs, and fosters a research environment to evaluate assistive device designs from biomechanical and functional standpoints. 

Using appropriate technology, scientific methods and innovative translational models, R2D2 aims to enable easy accessibility and affordability of assistive devices and rehabilitation resources. R2D2 has successfully transferred technology to like-minded industrial partners including its startup, NeoMotion.


Here's wishing you a fantastic 2023! 

As we step into the 8th year of R2D2, we look back with pride on what we have accomplished but more importantly, the difference we have made in the lives of persons with disabilities. We thank our users, staff, patrons, partners and our institute for inspiring and enabling us!


Sports 4 All, an inclusive sports event for persons with disability was conducted on December 11, 2022 by our center along with ICMR - National Centre for Assistive Health Technology.

Over 150 persons with disability, 100 caregivers and 100 volunteers participated


Prof. Sujatha Srinivasan!

KADAM, India's first indigenously developed polycentric prosthetic knee joint was launched on April 8, 2022. KADAM is the fourth product to be designed and developed at our center, and now ready for mass manufacturing. News coverage of Kadam and product video.


The first product from R2D2 was launched on November 05, 2019 in collaboration with industry partner, Phoenix Medical Systems. The Standing Wheelchair, named Arise, was launched at IITM Research Park by the Hon'ble Union Minister of Social Justice and Empowerment, Shri Thaawarchand Gehlot. 

Star Performer of the Quarter

Congratulations Rajesh!

Your ability to understand design concepts and fabricating that into tangible products in such short durations is remarkable. 

Thank you for all the awesome work!

Dr. T M Balaram Krishnan, Post Doctoral Researcher writes on

Computational Approach: A Potential Avenue for Effective Product Design

Product design is an exciting venture for an engineer. To bear witness to a design that may have been a part of imagination at a certain point in time which would later become a functional product appreciated by the users is an enticing aspect...

The third edition of the AT Makeathon was held during Shaastra 2022. Congratulations to the winners - Extent Theory (1st), We Moove (2nd), Team Delight (joint 3rd), Team DHK (joint 3rd), and special mention Trinary Pair! Thanks to all the teams who participated, and we hope to see you back next year!

Indian Patent No. 376689 (September 20, 2021): Easy to Use Portable Standing Wheelchair With Safety Feature and for Outdoor Use (Vivek Sarda, Swostik Dash and Sujatha Srinivasan). Indian Patent Application No. 201741019125 filed 31 May 2017

Indian Patent No. 368005 (May 30, 2021): Hybrid Manual Electric Wheelchair (Sripriya Kalidoss, Karthikeyan SD, Vivek Sarda and Sujatha Srinivasan).