One of the wife's family members is sick and she might have to travel to an inland city in Maharashtra. We've never traveled in last 2 years, so havent bothered with any of the COVID travel rules, so please pardon my ignorance.

The travel will from Toronto to Mumbai, may have a transit depending on what flights we get. We're double vaxxed.

1) At Mumbai airport, is a negative RT PCR done in Canada before travel a must to avoid institutional quarantine? It wasnt clear on the FAQ page. The test is upwards of $250, so trying to determine if I can get away.
2) On reading the FAQ, I believe the RT PCR at Mumbai airport is mandatory. That Rs 4.5K for quick 1 hour test.
3) Her hometown is 10-hours away from Mumbai airport. So the plan is to pre-rent a vehicle and have it waiting at the airport. That should be allowed, right?

She is ready to self-quaratine in her home for 14 days. Anything else I need to know about?