HDFC Bank Limited — roi of home loan is not being decreased as per rbi guidelines

Address:	110, Pyramid Carnations, Avalahalli, Near Presidency School, Yelahanka, 560064
Website:	www.hdfc.com/housing-loans/home-loan-interest-rates

Dear Sir/Madam,

I avail home loan from HDFC (Sahakar Nagar) branch and SARANYA MADHAVAN. on 29th June 2018.
File no:[protected].

1. I availed the home loan @ 8.65 and it has been increased to 9.05 over the last 3 quarters and i did not pay any charges for happening this process. i received emails and i was intimated time to time on this.

2. Now RBI has reduced the repo rate in february, april and may : which in turn the interest rate should be reduced accordingly. But now the bank is asking conversion charges to bring the ROI.

3. I paid 2950 to bring ROI to 8.80 from 9.05. Again RBI reduced 25 basis points. now the HDFC limited demanding 2950 again to reduce the ROI.

The bottom line is "HDFC increases ROI immediately, but wont reduce unless we pay conversion charges".
If this is the case, do i need to pay these charges whenever repo rate is decreased? it does not make any sense..this is absolute looting from HDFC limited. this is cheating as new customers always get a discount of 25 basis points.
i have already contacted support team, grievance redressal Level 1 2 and 3, Regional Manager, Banking ombudsman & NHB, but no response from any one. now trying with Indian consumer court.