Does the B.Tech percentage affect placements of M.Tech students in top colleges like IIITs, IISCs, and IITs?

No, it doesn't affect the placements in M.Tech because of B.Tech from the tier 2,3 colleges however because to get into the top colleges if you have qualify the GATE with high numbers and get into the IITs then you don't have to worried about percentage of B.Tech because now the IITs will take care

No, it doesn't affect the student's chance of placement.

Absolutely Not, if you complete your M.Tech from institution like IITs, IISCs, IIITs then your B.Tech score will not be considered more, in your placements because IITs colleges have their own Brand Value, if you get admission in IITs college this is very big thing. But in this time if you are in B.

No, B.Tech percentage cannot affect placements of M.Tech students because to get good placements in M.Tech they only have to secure good score in GATE exam.