Thailand, Normal, 600 AD, ended 1902.
I must note that the game didn't want to check the victory

however, I can provide a screenshot and a save in which you can clearly see I and the native civs control all of South Asia.
The first goal isn't too hard, really: if you get lucky most of the civs are still around, and most of the civs in my game were Buddhist. I had 6/8 OBs by turn 2 (Buddhist Mughals, Cholas, Tibet, Indonesia and Corea and Taoist China)
The second goal is a bit of a gamble: (un)timely plague can ruin or make your day. However, it seems the Plague doesn't spread to Ayutthaya anymore (or my city was just too healthy).
For the third goal, I had to conquer Portuguese trading posts (not overly hard, used cuirassiers with Russian Iron and Horses), Dutch trading posts guarded by muskets (the one on Malaysia is extremely annoying: it's surrounded by jungles and one cannot use siege - I waited until frigates and used Chang Suek spam), Indonesian Indies (because Indies aren't allowed for UHV) and finally English Calcutta - their trading company failed but they used congress to get it back

). I also settled some South Asian islands because I didn't know whether the code allowed tiles to be unowned or not - all in vain, though.
Hovering over my name in the right part of the screen reveals I would have gotten a score of
2942 if it would have checked.