Highly unlikely. Minimum wage in India is 9,000 rupees a month which is about 0.75$ USD per hour. Even if they normally pay double the minimum wage which is effectively what they are doing in the US now with 15$ an hour minimum wage, paying 10 times that would easily make them un-competitive with every other company.

Raise their wages slightly and buy a load of positive press? Possibly.

Pay people $15/hour? No chance.

If Indian consumer can afford the cost increase.

Does Amazon have a presence in India?

Yes Amazon is huge in India. https://www.businesstoday.in/current/corporate/amazon-india-...

Labor in India will be affected by changes in NREGA, over amazon.

Yes. Quite a large presence and growing rapidly.