Air India — closure of boarding schedule

Address:

Mumbai City, Maharashtra

I booked ticket in ai 663 for goa with time of departure on 1330 hrs on 30 oct 17 vide tkt no. 098-[protected]. I reached at 1254 hrs, i was informed that boarding has been closed 45 minutes prior to departure. Tkt was rescheduled on payment for ai 661 departing at 1650 hrs vide tkt no.[protected]c1 and on issue of boarding pass it was informed boarding will start at at 1620 hrs that is 30 minutes prior to departure, though flight is in time. The matter of closure of boarding in my earlier flight tkt is not understood. Regards