150 Years of Celebrating the MahatmaNational Emblem ISRO Logo
Department of Space, Indian Space Research Organisation


The current e-procurement site is proposed to switch over to new website. All the registered/new vendors are requested to visit new website at https://eproc.isro.gov.in and validate your credentials for participating with ISRO centres.

ISRO Inertial Systems Unit (IISU)



ISRO Inertial Systems Unit (IISU)
Vattiyoorkavu PO
Thiruvananthapuram - 695 013

Director: Shri D. Sam Dayala Dev
Email: iisu_director_office[at]vssc[dot]gov[dot]in

ISRO Inertial Systems Unit (IISU), Thiruvananthapuram is responsible for the design and development of Inertial Systems for Launch Vehicles and Spacecraft programmes of ISRO. Major systems like Inertial Navigation Systems based on mechanical gyros and optical gyros, Attitude Reference Systems, Rate Gyro Packages and Accelerometer Packages are developed indigenously and used in various missions of ISRO. IISU also designs and develops Actuators and Mechanisms for spacecraft and allied applications.

IISU is engaged in continuous Research and Development too. The experience and knowledge gained over the years are used for perfecting the present class of sensors and systems and developing new technologies. Further IISU has also initiated advanced technology development programs in niche areas to adapt itself as a Centre of Excellence in Inertial Sensors and Systems. IISU strives to make the systems cost effective, reliable and realisable in tune with global trends.