Air India Express — Refund and cancellation

Address: Airindia express customer service

Hi,
I need to cancel my ticket with pnr: fuvrwb
Travel date - 14/07/2020
From tiruchirappalli trz to singapore sin

I tried roaming around chennai airport - no staffs,
Then i tried with my family members at trichy airport - no staffs,
No customer care services was also available.
Tried the below numbers several times
[protected]
[protected]

I need my refund which i am trying to cancel between 72hrs to 24hrs.
Please deduct inr3700+350 and refund my balance.

Please do the needful, attached my ticket for your reference.

Thanks & regards,
Muthu. M