Explanation:

All statements are correct.

• Indian Space Research Organisation (ISRO) is developing a Next-Gen Launch Vehicle (NGLV), which will one day replace operational systems like the Polar Satellite Launch Vehicle (PSLV).
• The PSLV, often dubbed the ‘trusted workhorse’ of ISRO, can carry the payload of 1750 kg to sun-synchronous polar orbits (SSPO) and payload of 1425 kg to Geosynchronous and Geostationary Orbits (GTO).
• ISRO is developing NGLV as a cost-efficient, 3 stage to orbit, reusable heavy-lift vehicle with a payload capability of 10 tonnes to Geostationary Transfer Orbit (GTO). NGLV will feature semi-cryogenic propulsion (refined kerosene as fuel with liquid oxygen (LOX) as oxidiser) for the booster stages which is cheaper and efficient.

Hence option 4th is correct.