What do you think in future will ISRO be best space research center than NASA. I think yess because ISRO do the things which are not possible everNASA also but what's your thought

do you know NASA also says that ISRO is better

I think ya... because ISRO do always better in law coast and in small human resources.

Some of amazing missions of ISRO

From last decade, ISRO also provide equipment to other countries at law coast with high quality. That is also good.

the answer is the last option or letter d)