You may record all calls. Ask them to send all original/authenticated copies of all bills from the day1 to as on date, alongwith copy of communication from M/s Standarad Chartered Bank certifying that M/s Shaha Finlease is authorized to collect the dues if any on CC from your father and agreement between M/s Standarad Chartered Bank and M/s Shaha Finlease.................by registered post only alongwith letter citing their demands from you and offer of Rs.10000/ to settle as full and final amount.......................................and stop calling you on phone and not to call anyone else.
Don't forget to mention that in its letter you are to be given min. of say 60 days time to examine, and revert.
As per Hindu SuccYou (son) are not liable to pay the debt of your father.
The dues may also be time barred.
There are many threads on M/s Shaha Finlease and M/s Standarad Chartered Bank at LCI and you can search by typing key words in box for search on right hand side...................
e.g:
https://www.lawyersclubindia.com/experts/Battle-against-shaha-fin-lease-amp-standard-chartered-bank-562416.asp#.Vg-Sr31-jMo
https://www.moneylife.in/article/are-credit-sudhaar-and-cibil-taking-borrowers-for-a-ride/30513.html
https://lexofy.com/document/f9ad7429c7ed8d045d5f5bde5f571f93
Once you have all documents with you ,you may show these to an able lawyer and settle the matter thru your lawyer only.
