Actually by and large Indian government has done a good job fighting diseases like Polio. They set up centers accessible to nearly every one, where you could have Polio drops administered to kids. Generally these are near places of worship, schools or community centers. The government also bought in celebrities to campaign for that.

I see the same for Tuberculosis, malnutrition, maternal health, child diarrhea and many other public health things.

But definitely more can be done.

Please note India also has massive corruption in private set ups. Pointless tests, surgeries,needless medication advices to inflate bills, treatments purpose fully stretched... etc etc. It all happens.