Whatever i said above might differ person to person depending on how important/valuable a particular customer is for the bank & how far are the BM & RM are willing to go to keep the customer satisfied, in my case my brother has a long and dense financial history with the bank both in terms of savings as well as current account variants. At a point he wasn't using kotak credit card because the offers weren't much beneficial to him at that point of time, he had approached his RM with credit card closing request and he was like, what if i could remove annual charges and you can just keep it as emergency funds or avg credit account age. My brother was like that works. Though it took quite sometime getting it done, but the RM was able to pull it off.
It is to be noted that My brother had years of relationship with that branch , BM & RM. My brother owns a business hence the txns and turnover was heavy.
That's all folks, hope this was detailed enough & helpful