Some Vistara flights may have two or four economy seats.
you have to keep on checking in Google incognito or Firefox safe mode, use plus minus 3 days for departure and arrival
You don't have to have points to check availability.
It will tell you if it has availability on the day for your search criteria, but it won't show up individual flight details or go any further, it will just tell you that you do not have enough points.
Also you can call and they can help you find it, sometimes they have seats available that do not show up online.
Some Vistara flights may have two or four economy seats.
you have to keep on checking in Google incognito or Firefox safe mode, use plus minus 3 days for departure and arrival