Air India — cancellation of tickets

Address:

IIT Bombay, Mumbai 400076

On february 18 and feb.22, 2020, i sent a request to customer care for cancellation of my 3 air tickets in view of some unavoidable personal inconvenience. Those tickets i purchased myself from air india page but while trying to cancel those from "my booking" link, i did not find any link to cancel. Finding no option, i then sent my request to ecommerce (See below the copy including flight details) for cancellation and refund, but as yet i have not heard anything from them. I would appreciate an early action in this regard.
Thank you.
Kalyan das

([protected]@gmail.com)

The manager,
Air india

Dear sir/ madam,

I would appreciate if you please cancel the following tickets and arrange for the refund. I failed to cancel those tickets from the 'my booking ' link.

1. Bom-del ai 677 on 23rd february
2. Del-ixc ai 9831 on 23rd february
3. Del-bom ai 636 on 29th february
(Copies attached)
Thank you in anticipation of your kind favour.