Would like to know any possible discount to renew the subscription otherwise, I have to transfer ourself to telly as its giving much better discounts to transfer there.

Afaik, there is no discount policy for renewal. You may open a new account

https://quickbooks.grsm.io/India

then you may have 2 options

1. Utilize a 3rd party tool to duplicate the data

https://transactionpro.grsm.io/qbo

2. Purchase a 3rd party service to duplicate it.

Otherwise, let us know if you decide migrate to other product 8)