Not received settlement letter after paying agreed settlement amount on personal loan

I had taken a personal loan of 175000 from Bajaj fin and was paying emi on time. Unfortunately due to financial crisis and job shifts i couldn't pay 8 emi and like a dumb person tried to runaway and skip things. I was traced by bajaj finance and then I was asked to pay a settlement amount in two parts 30k and 26301 which i paid as promised. After that i kept calling the supposedly laywer from baja fin but he stopped answering my calls and i sent him one sms and then stopped. After a year i get a call from another guy stating i still owe them money. I narrated the story and sent email to bajaj and jago grahak jago. Then things stopped again for a month. I received a call again from the original so called lawyer and he agreed(i have it recorded) that it was his mistake because i had paid as agreed. I had told him i don't owe anything now and why would they call me after a year? What can i do now as i had agreed and accepted that i ran away and avoided paying. Plus i agreed to pay the settlement amouny. Right now i am. Unemployed and do i really owe money inspite of paying the agreed amount. Please. Suggest and please tell me. If i should. Hire a laywer. I had paid 562301 as instructed for settlement. No letter received as the guy stopped. Answering my calls