Tata Housing Development — Tata is cancelling the deed without providing refund

I had booked a property with Tata Housing Boisar in 2017 from their Dubai Sales Office, they assured me that they’ll help me with the loan application too. I was referred to Indiabulls in Dubai, they approved the loan and the disbursal was supposed to begin once Tata sends the next invoice
I made my initial payments and reached out to the sales representative to check if I need to pay anymore before the bank disburses the loan amount. I didn't receive any response from him. But I continued to receive payment reminders.
Indiabulls was not responding to my calls or emails for the loan disbursal request. During this entire period I kept Tata informed about the situation but no one offered any help with an alternate solution to resolve the issues.
Indiabulls team responded after 3 months of follow up to say they are undergoing liquidation and cannot support. He referred me to LIC Housing Finance which was a nightmare as well.
Loan was processed but during disbursal and submission of documents, their team stopped responding. I requested to change the file location from Virar to Jogeshwari.That process took another 3 months as well. By the time the file was transferred to Jogeshwari, the approved loan validity had expired.
I requested Tata to cancel the deed or help me with a new buyer who may be interested in their property. They refused to cancel or buy back and said it's my responsibility to manage the payment and loan application.
I had to start the process again from scratch, owing to Covid, there was a significant amount of delay.
Finally, the LIC team completed the process including property verification.
When I contacted TATA, they sent me an SOA including 11lakhs as interest. They offered a 50% discount on the interest payment provided I pay before 31st March. Last week of March, due to the bank strike, the payment couldn't be processed.
When I contacted Tata for an extension, they sent me a deed cancellation letter and asked me to personally hand over the original documents over to them. They’ve also refused to refund the amount because they reserve the right to cancel the deed without offering the refund.
Since there are travel restrictions to visit India, they’ve asked me to arrange a POA to complete the same. The whole country is in a lockdown but they expect people to travel while Tata employees expect people to take the risk of getting infected inorder to follow their orders.
I emailed [protected]@tata hoping for a better response, emailed them all my communications with the team to explain that I have been trying to make these payments but due to various external factors.
The deputy manager's response was the same as others, they are not at fault. They are not responsible to provide any kind of support and now I owe them 17lakhs which they have the right to claim from me. He ended the email asking if I am still interested in proceeding with the deed.
How can I proceed with the deed if they have already cancelled it? Due to their action, the bank has also cancelled my loan application.