Pretty much all imported full-synthetic oils are around that 8-11k price point for 4 liters - Havoline, Total, Shell, Mobil, Addinol, ZIC, Aisin, etc. Liqui-Moly costs a few thousand rupees more, in the same price bracket as MOTUL, AMSOIL, etc.
Gazpromneft's G-Energy Far East 5W-30 Full Synthetic API SN is a notable exception, perhaps not for long.
Guard Lubricants also claims to have full synthetic oils, but with no specs, blending info, country of origin, or technical information that I can see. Hard pass. PSO's Carient 5W-30 Fully Synthetic PAO API SN is also likely a bit cheaper, if anyone is interested, although I don't trust them either.
I paid Rs. 2,120 per liter for Havoline ProDS Eco 5W-40 Full Synthetic API SP a few weeks ago. Conventional and semi-synthetic oils haven't seen as drastic a price hike.