Air India — Refund of Air ticket pending More than a Year

Hello Air India,

Could you please let me know what is the reason for not refunding for tickets which had been cancelled in May 2020. I paid around Rs 240000 for two single side tickets from Mumbai to London and still waiting for the refund from may 2020.

1) E-Ticket number (13 digits) :[protected]
Traveler Last and First Name : Chathukutty Rajani, Syam
Flight Number : AI 131
Date of Travel : 23 May 2020

2) E-Ticket number (13 digits) :[protected]
Traveler Last and First Name : Koodali Thazhathu Veettil, Smitha
Flight Number : AI 131
Date of Travel : 23 May 2020

Please let me know.