Air India — cancellation of ticket

Address:

289, Near Saraswati Vidhya Mandir School, KATJU NAGAR, RATLAM, Ratlam, Madhya Pradesh, 457001

I have booked a indigo flight from indore to shrinagar for 9.8.2019 and return flight frrom shrinagar to indore by air india on[protected].
Due to circumstances in jammu and kasmir i cancelled my journey. So indigo refunded me full fare. But air india is refusing to refund full amount.
My daughter also booked tickets for same date and destination by indigo airline and on cancellation she got full refund.
Please do needful in the matter arrange full refund