Question 1

How many satellites has ISRO launched?

Accepted Answer

As of 2025, ISRO has launched over 430 satellites — including more than 389 foreign satellites from 36 countries. PSLV alone has launched over 320 satellites to orbit since 1994, making it one of the world's most reliable launch vehicles.

Question 2

What are the major Indian satellites currently in orbit?

Accepted Answer

Major Indian satellites in orbit include INSAT/GSAT communication satellites, IRS (Indian Remote Sensing) earth observation satellites like Cartosat and Resourcesat, NavIC navigation satellites, and scientific spacecraft like Aditya-L1 (solar observatory) and Chandrayaan-3.

Question 3

Which countries have used ISRO to launch their satellites?

Accepted Answer

ISRO has launched satellites for over 36 countries including USA, UK, France, Germany, Canada, Singapore, Japan, Israel, and many others. PSLV-C37 set a world record by launching 104 satellites in a single mission in February 2017.

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