in 1972. Under his guidance, beginning with the first Indian satellite "Aryabhata" in 1975, over 18 satellites including Bhaskara, APPLE, Rohini, INSAT-1 and INSAT-2 series of multipurpose satellites and the IRS-1A and IRS-1B remote sensing satellites were designed, fabricated and launched for providing communication, remote sensing, and meteorological services. As Chairman of ISRO After taking charge as Chairman, Space Commission and Secretary, Department of Space in 1985, Rao accelerated the development of rocket technology resulting in the successful launch of ASLV rocket in 1992. He was also responsible for the development of the operational PSLV launch vehicle, which successfully launched an 850 kg. satellite into a polar orbit in 1995. Rao initiated the development of the geostationary launch vehicle GSLV and the development of cryogenic technology in 1991. He was responsible for successful launch of INSAT satellites during his stint at ISRO. The launch of INSAT satellites gave a thrust to communications in India, during the 1980s and 1990s. The successful launch of INSAT provided telecommunication links to remote corners of India. During these decades fixed telephone (called as landline) expanded throughout country due to availability of satellite links at different places in the ground. People could talk easily from anywhere by use of STD (Subscriber Trunk Dialing) instead of waiting for hours to get the connection.{{citation needed|date=April 2013}} This development played a key role in future for India to develop as an Information Technology hub. He was the first Chairman of Antrix Corporation. He received the Padma Bhushan in 1976. He was the first Indian Space Scientist to be allowed into the Prestigious “Satellite Hall of Fame” at Washington DC, USA in recent past on March 19, 2013. Additional responsibilities Rao was an elected Fellow of many academies such as Indian Academy of Sciences, Indian National Science Academy, National Academy of Sciences, Institute of Electronics and Telecommunications Engineers, International Academy of Astronautics and Third World Academy of Sciences. Rao was conferred Fellowship of the World Academy of Arts & Sciences. He was the General President of the Indian Science Congress Association for 1995-96. Rao was the Vice President of International Astronautical Federation (IAF) during 1984 to 1992 and continues to be the Chairman of the Committee for Liaison with Developing Countries (CLIODN) since 1986. Rao was elected as the Chairman of United Nations - Committee On Peaceful Uses of Outer Space (UN-COPUOS) in June 1997 and also Chairman of