Air India — Ticket fare of cancelled flight is not refunded.

My name is Satish Sarode. I had Air India flight on 26 may 2020 from Mumbai to Frankfurt.
I booked my flight from Air India website on 24/02/2020.
Flight was cancelled due to covid-19 pandemic. Air India supposed to return my complete fair as per supreme court orders. I have contacted air india customer support team many times. Air india delaying money refund since more than 6 months. I have called several times to Air india customer support team which is causing additional mental stress.
My Ticket details mentioned below.

Flight No- AI125 (Air India).
From Mumbai to Frankfurt.
Travelling date- 26/05/2020.
Ticket booking date- 24/02/2020
Ticket NO[protected],[protected].
Passenger names- Mr Satish Sarode, Mrs Smita Sarode.
Ticket Booking Amount- Rs 51, 130.