Punjab National Bank Housing Finance [Pnbhfl] — changing roi every month without any intimation

Address:

802 C2 DREAMS AAKRUTI, near kalepadal railway fatak hadapsar, Pune, Maharashtra, 411028

I have 2 home loan from pnbhfl
Hou/ind/0316/273628 & hou/pun/1216/339116 pnbhfl changing roi almost every month and increase my total tenure of 30 years to 72 years.
They are cheating us by increasing tenure without any information to customer.

Last financial year they charge 2.5 lacs interest and deduct only 8 thousand from principal only after giving all emi (20k) on time from last 2 years my total principal is deducted 25 thousand only.