The GLDS design is no longer an ICV but a light tank. The green tank appeared to be an old demonstrator while the final design is the one with desert camo. Note that the newer design has no rear door or ramp.Chinese made a similar light tank Type 15 or VT-5 armed with a 105 mm gun. Weight is around 33-36 tons. This is designed as a tank from the begining rather than an ICV hull mated with a modified tank turret like the GDLS MPF. Hence, it is more compact with likely better frontal protection, but cannot carry troops.
Years ago DRDO also did a similar light tank experiment. They combined a BMP-1 chassis and mated it with a modified GIAT turret, featuring a 105 mm gun. But the army rejected it.
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DRDO also experimented with BMP chassis mated to modified Vijyanta turret.
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Needless to say, these projects can be easily revived and fitted with modern electronics and modular armor packages developed for the Arjun MBT programme, if a requirement arise, especially for deployement along LAC, opposite to Type-15 of PLA. But army has decided to go for deployment of heavier T-72 and T-90S, equipped with heavy ERA, considering the presence of ATGM among Chinese troops.