Medical examination for insurance in India?

I would like to know what the medical examination required for an insurance scheme in India consist of? ECG, Blood sugar test and? Does it also consist of an HIV Test. Assume the sum assured to be high – some Rs. XX lakhs.

How to get Senior Citizen Travel Insurance without Medical Tests?

My Old aged parents are travelling to meet me in CA, US. They are based out of Calcutta and cannot go for a medical test. Also, I need to have the policy sent to me directly so that they dont have to carry it and I can manage this myself. Is there any good website, where this could be bought instantly by paying online?