New India Assurance — porting problem

I yogesh kumar mittal member of icai, my membership no. Is 096729, i have started my medical policy in march 2014 from iffco tokio, thereafter i have ported this policy in march 2016 into cigna ttk health insurnace and therafter in march 2018 i have ported into your company "the new india assurance co. Ltd." on 30th march 2018. And i have taken this policy by me on individual basis, i have put all the data by myself and premium also paid by me directly. You have given some discount to icai members only but its not a group policy. Now when i have send my policy to another company for porting in march 2020, you have decline that this policy is a group policy and it can't be port. Whereas i had not taken any group policy, and not even written anywhere in the policy. And now if my policy is not ported then my policy will start as new policy and the benefit of my last 6 years policy as locking period for some diseases will not get.