I have travelled 4 times using AirIndia in the last two year Can I claim for miles now?

Question

I have kept all the boarding passes till late.

Answer 1

Honestly, it depends on how nice the airline is..  I flew on frontier once, never figured I would fly them again so I didn't sign up.  Over a year later, I ended up flying them a lot and still had the boarding passes in my receipts file.  I called the FF line and they credited me 75% of the miles.

Answer 2

If you were signed up with their frequent flyer program when you flew, you may be able to. Some airlines do let you claim unclaimed frequent flyer miles 2 years behind.  Others only one.

Call their customer service to find out.

Answer 3

Not unless you were a member of their frequent flyer group when you made the flights.  If you were, contact the airlines for retroactive credit.