Citi Bank Cheating Customers By Raising Minimum Balance to 1Lac

Location/place: Hyderabad

Name of company/service: Citi Bank

I am holding a Saving account with Citi bank. It was a salary account. When i switched to another company, Citi bank asked me to maintain 25K in the Suvidha Savings account as Salary was not getting credited. I did open a 5 Year Tax Saver deposit for 25K to maintain balance of 25K.
Now Citi Bank is asking to maintain a minimum balance of 1 Lac in the saving account. Now They are not allowing me to close the account as Tax Saver deposit locking period is 5 Year. The options they provided are maintain 1 Lach or pay 500 Rs as fine every month. It is not affordable, if a Savings bank account is demanding for a minimum balance of 1 Lac in a country like india. I am not sure why RBI is not imposing any regulations on such banks.