AC043 (Aug 18 to Aug 31 3 flights a week confirmed by both govt. Sept 1 onwards Air Canada lists 4 flights a week or SUBJECT to Indian Govt approval, as of today no approval is provided).
My parents have Aug 30th AC043 (which is what they will fly on) and just as a backup AC043 on Sept 03. So far the Sept 03 flight is operational.
or
Air India Vande Bharat.
Check
https://bookme.airindia.in/AirindiaB2C/Booking/Search for availability & bookings
and Phase 6 Vande Bharat Flight Schedule
http://www.airindia.in/evacuation-flight.htm
The Air India Vande Bharat seats are blocked by Travel agents so you may have to go to an agent...OR go to the Air India office.