After reading the success story of the Mars Mission by India, I was peeping into my stamp collection to see whether I have any Indian stamps related to space mission. I got the below Aryabhata stamp in my collection.
Aryabhata was the first Indian Space Satellite, designed by ISRO and launched from USSR through Cosmos 3 vehicle. This satellite was named after the famous Indian Mathematician and Astronomer of 5th Century. Even though it was not very successful it paved the way for the today's success of Mangalyaan. Like many other satellites, Aryabhata satellite has a compact design.
The below stamp was issued on 19th April 1975 by India post to commemorate the successful launching of the satellite.