Resigning partner refusing to pay taxes or Supplemental LLP Deed expense

The resigning partner tendered his resignation back in first week of September 2020. He declared his last date to be October 31 2020. The resigning partner had initiated the thread of taking up Startup India registration to be able to avail tax exemption. As the registered address of LLP was also going to change, both aspects (partner's resignation and registered office address updating) are to be integrated in single Supplemental Deed. The Startup India registration will make sense with this fresh address of LLP. As on October 31 2020, Startup India registration is not in place and nor is the tax exemption. I have shown willingness to provide the resigning partner this tax refund (in case received from government). But partner does not want to pay tax now. He wants the exemption on his capital right away. Additionally, there are expenses like stamp duties, CS fees, CA fees, etc involved in this supplemental deed. Resigning partner does not want these fees to be part of his share calculation. In case resigning partner does not contribute in tax and expenses and takes all profitting capital away, company gets heavily burdoned by final tax calculation as of October 2020. Not only does this tax gets paid to government but partner is also holding on to the tax portion he did not contribute while paying taxes. Company is facing double hit in this case. I tried explaining the resigning partner all these calculations. I also promised to reveal all necessary details with respect to tax exemption viz Startup India registration, Tax exemption consideration grant by Government, the refund received and refund due to him on such future receipt. Here, he needs access to all books of accounts even after resignation which I think is unreasonable demand. Please correct me if I'm wrong.