Credit card dues paid by settlement and NOC not given,

Wriet to Code Compliance Officer, MD of the Bank  and to Governor RBI.............

Attach copy of Settlement letter and receipt of payments made by you. 

If you have the offer of settlement in writing and have paid and have payment reciept then it should suffice.

Having made the offer of settlement and accepted payment as per settlement the lender/bank should not harass.

Settlement is adverse entry and may still reflect in CIBIL............

The lender may decline Home Loan..........or may agree per IT's discretion.