Hello aspirant,
Completing the masters degree provides you more opportunities to get recruited easily in Government sector jobs.
When aspirants with B.Tech and M.Tech degree qualification apply for a job role in Government sector, M.Tech candidates are given more perference especially in research fields.As you want in ISRO, which is a very prestigious company in India, applying there after completing a M.Tech (regular) degree will give you a better designation as a scientist.
And discussing about M.Tech in distance or regular. If an aspirant wants to join a company then he must complete the course in regular format as companies prefer them over the distance course. But once you are into a company M.Tech in distance gives you promotion as well as experience.
Hope this helps,
All the Best!!
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