He dropped the charges for 24Mln soon after Tinkoff started a fraud case against him [1], nobody really knows what happened later but they probably got some sort of agreement and he got a compensation.
However, he felt his life was under threat, which may have helped the bank's negotiating power - after all, it is Russia. https://www.rt.com/business/tinkoff-bank-agarkov-credit-299/
A good example of why you should be sure your country is a safe place for contract disputes to be dealt with by the courts and not by men with ski masks and AK47s.