The agent of pnb metlife gave me the low return policy- forged my signature on the document

Dear All, I was working at Bank of india, where i was having NPS Account . So After leaving my job i opted on the online NPS-CRA Portal to select annuity company ,Pnb Metlife. So according to the rule 20% of the total amount was withdrawn as lump sum and 80 % was invested in Annuity plan. It started in may 2025. So the pnb metlife agent of my Life Annuity with return of Purchase Price told me that my annuity plan does not have return of purchase price to nominee , so please sign a (pre written)format in which it was written that i have opted for life annuity without ROP (return of purchase) and please change it to Life annuity with ROP. I Signed the document and send to him. This plan was option number (2) Now after one year i realise that there was another option(6) in which Annuity payable increases at a rate of 3%, compounded per annum throughout life of annuitant, with return of purchase price. So this means i will receive Rs 2587 constant amount my lifetime because the agent never told me about other option. if i would opted for Annuity payable increasing at a rate of 3%, it would have increased to 2600,2700 per month after 1 -3 years and so on. Moreover on the policy document the agent has forged my signature , which is not mine and place is mentioned delhi and i was not in delhi. So what can i do in this case of Mis-selling