India
The Indians are builders. War you will rarely face on the Indian subcontinent, and the only battles you will have will be the skirmishes with barbarians or with the still independent states in the south. If you are a builder at heart, then this is your civilization.
3000 BC start
Any victory aside from the Historical Victory
I do not recommend going for them. While it might be interesting to see the Indians in space and India's land lends itself to teching, the Mughal spawn in 1210 AD will flip two of your most important cities, and their army will probably dwarve yours. Skilled players might be able to pull off a culture victory before date mentioned or conquer the world quickly enough, but it will be hard to do so.
Historical victory
The techpath I took was Priesthood-Masonry-Mathematics-Calendar-Currency. This will net you all the obligatory technologies, although you can always research more technologies if you like doing so.
-Found the Buddhist and Hindu shrines by 100 BC.
This one is probably the easiest of the three. Tech priesthood straight away and start a Hindu Temple in Varanasi. Once it is completed, run two priests there (thanks to the Pagan temple conversion, you will have both a Buddhist and a Hindu temple there). Then found the Hindu shrine and start running five priests until you get another prophet. Obviously don't build any other wonders there to prevent GP pollution.
-Build 20 temples by 700 AD.
This will likely be the hardest victory condition to complete. You will certainly have Buddhism and Hinduism, but other religions will be hard to come by. Founding an additional one is possible : Zoroastrianism, Taoism and Confucianism are ruled out thanks to your neighbours the Persians and the Chinese, but Catholicism might be achieved in time if you focus on commerce.
Conquering a Chinese or Persian city can give you access to Zoroastrianism, Confucianism or Taoism.
However, it is also possible to complete the condition with just Buddhism and Hinduism. You will probably need more than 10 cities, as some cities do not have enough production to get more than one temple out (and on top of that, only one religion can spread out of itself to a city). Techwise, this isn't really a problem, as the only techs you do really need are masonry, priesthood, mathematics and calendar (although Currency and Code of Laws can help your economy). Just be sure not to go bankrupt when the plague comes around.
You should only build monasteries, settlers, workers, spearmen and temples. Other buildings (and wonders) are wasted hammers if you want to go for the UHV.
Forced labor can help you to get the temples out in food-rich but production-poor cities.
An example as how to settle your cities. I also settled the Indonesian capital, but that got obviously flipped right after completing the victory condition.
-Have the highest world population in 1200 AD.
Just surviving until then usually earns you the UHV. Your builds should be more military, granaries, stepwells and harbours. An untimely plague might ruin your day, however.