It depends what route u take and dates too nearer they are higher the price.And what's the flight cost? Via air india miles
Once u transfer u r points to air india flying returns 1 point is 1 inr. Usually I have seen airindia economy blr delhi to be 9 to 11k if very nearer dates but when I check them in advance 3 to 4 weeks earlier it is around 5k to 6.5k I believe they have 3 types of fare flex is by 300 inr more still waiting 7k. Usually if u have around 20kpoint u can book 4 tickets to and fro.And what's the flight cost? Via air india miles
Yup instead of using cash points are equivalent to cash. Check when you want to travel research the route you want to fly and check how many points required on that route . Airindia and vistara are the only ones which offer you on board meals rest of the other airlines you need to place online meals or purchase in-flight which is over and above your flight ticket.So good option to transfer to. Air india?
Maybe it is increased because of season usually Oct nov and Dec revenue tickets to will be costly.worst conversion mjumbai delhi costing 20k miles lol