This is an important milestone for ISRO. This launch successfully validated ISRO's homegrown CE-20[1] gas generator cycle cryogenic engine. With this, ISRO has mastered both staged combustion (CE-7.5[2]) and gas generator cycle cryogenic engine technologies.
Next up is SCE-200 RP-LOX engine[3]! There is a plan to swap GSLV Mk III's L110 hyperglic stage with SCE-200 stage, which should considerably boost payload capacity.