Anyway the point is moot because R&D costs will probably be paid in the US and other richer markets, India could simply take a free ride. If everyone wanted to do this then you would need to find a way to compensate R&D investments.
Better to just negotiate cleanly with the company for the drug you want, and sell it all on your own market like the NHS does.
Well that's what I meant negotiate a "fair" price that would encourage further investment but you don't overpay - the problem is that unless you have competition/substitutes you can't have market pricing so you need to have a good estimate of "fair" price, eg. say a company comes up with 100% effective HIV cure tomorrow - no competition, nothing comes close, a lot of people would pay gold for that but well over investment/production cost and profit is in many multiples of going rate. You would say "fine" obviously there's a high demand - but the reality is that the demand is inelastic and supply is artificially restricted by a government granted monopoly - reverse engineering costs + production cost would allow a lot lower prices, so you aren't benefiting the consumers (the discovery has already been made) or optimally allocating resources (you have recovered investment/production costs, earned standard profit rate and then some) the thing you earn on top of that is deadweight loss from rent seeking so you need to come up with some metrics to avoid that and also set expectations for investors.
All I'm saying is that if we accept that there is a market failure where you can't recover your investment because you don't have enough advantages on the market (without IP) we should consider compensating the innovator in a way that would stimulate further investment in the area, and when that is the objective you can measure/model what is the minimum profit incentive you need to provide to guarantee acceptable levels of R&D investment.