Citibank — Settlement not accepted

Hi, I am trying to settle the credit card which i took 10 years ago. They have already written off the account. But i want to atleast show settled in CIBIL. I called citibank and they said I have 3, 87000 outstanding. They offered to settle for 150, 000. But i cant pay so much. I am willing to pay 40-50K for settlement but they are not agreeing as though they are going to show as paid. My card # [protected], Phone # [protected]