Citibank — conversion from salary account to normal account

I had about 15 years long association with citibank in the form of salary account. Recently i changed my job and with my new organization preferred to continue with citibank as salary account. My salary is being disbursed in citibank. However citibank is not acknowledging it has salary and forcefully converted it to non salary account with mandatory minimum balance of inr 1, 00, 000.00. On contacting citibank, they are telling that they don't have tieup with my new organization and hence can not continue this account as salary account in spite of salary being deposited in the account. They are telling me to either close the account or convert it to basic account which will have capping of maximum 4 transactions per month.in case transactions goes beyond 4, account will get converted to minimum balance of 2, 00, 000.00 and accordingly penalty will be invoked if balance is not maintained. Now i have difficult situation since there are many places i have references of this account since i am using it for last 15 years and all those references changed to any other bank will be very big task.
Looks like citibank has started taking customers for granted and want to make money by any means. How come my account becomes normal account even if salary is getting deposited?