GoAir — Complaint against Goair regarding Flight cancellation and no acceptable resolution provided

I would like to file a complaint against GoAir Airlines with reference to my flight dated 5th March 2021, From Pune to Ranchi, cancellation.
Find details below regarding the event, inconvenience caused as well the questions i would like to receive a response to.
I made a pre booking of to and Fro GoAir flight on 5th March and 8th March respectively. The booking was made 2 months prior to the travel date. A day prior to the travel I received a message stating that the flight has been cancelled due to "Operation issues". Q1. Why didn't I receive a call regarding the cancellation? Upon calling up the customer service, i was given few options1. I can cancel my tickets and receive a full refund. I was told that this will be done FREE OF COST. Really? Would you like to charge us for this as well?2. I can reschedule + 4days, this will be FREE OF COST. Again, really?3. I can take an alternate flight
I took option 3, because you guys didn't really leave me with many options, My whole trip was pre-planned, any change would mean a drill down effect on the whole plan. This would also mean more incurred charges as well further inconvenience.
So yes, option 3, i was given an alternative which had a layover of 12 hours. Q2. How is a pre-booked flight cost with layover of 2 hours equal to flight with layover of 12 hours?Q3. I am travelling with my elderly parents, do you think this 12 hour layover puts them in a comfortable position?Q4. Who will be liable if this dis-comfort causes health issues?Q5. Are you not responsible to provide accommodation due to the layover? Remember that the flight was cancelled due to reasons at your end and the liabilities incurred should be taken care of by you.Q6. Who is responsible to provide covid test as now we will need to enter a zone which mandates Negative Covid Test?
Also the customer service has not been of any help, all i could hear is "We are sorry for the inconvenience" " We can reschedule and so on free of cost" and when it was asked to pre- book seats on alternate flight, free of cost, it was denied. Q7. Who is responsible for all the inconvenience caused and mental trauma i had to go through due to all this?