Dozens. Hundreds. Doubtless India has many more.
Just look up Pakistan Journal of Pharmacology. (last issue here http://www.pjps.pk/?page_id=13), where by my count there are publication of at least three. Synthesising new molecules is literally the easiest thing in the field. So you isolated or developed a new molecule. Congratulations. You have accomplished about 2% of the work needed to bring a medicine to the market.
Once you have made a new molecule you need to
1) Check if it has any effects against pathogens in the dish
2) If so check (on mice, then eventually humans) if it does so on humans with the disease
3) Then see if it does not have adverse events (as the saying goes even a pistol will kill pathogens in a petri dish, what you need is something that will kill them in your body while not harming the rest of you).
4) If so can it be produced on an industrial scale economically?
A new substance can fall at any of these hurdles. Moreover the each of these has various sub tests and milestones within them a drug has to clear. Maybe it has excellent results in humans, but horrid side effects. Maybe the costs are too great to cheaply make. Maybe its effects are sp easily countered so as to be useless practically.
Sigh.