Seems a novice hacker tried from VPS instead of using proxy/VPN. If you have cyber crime facility in your country, you may get chances to get more information from google like who has used that IP for a timestamp.
But, instead of that, just securing your BTC-e account further (like if 2fa has not done yet or withdrawing balances) is highly suggested. Take care.
Actually cyber crime branch here is quite noob and they are only dealing with facebook misuse, fake facebook account, facebook troll against politician etc. I highly doubt they will be able to establish any connection to google and ask hacker information.
Yes actually i will enable 2fa and as i haven't used btc-e for really long time so i don't have anything to worry about. Just it was quite surprising for me to see someone have got my email and password combination from other sites. I have registered to one of the Nepali site recently before getting this types of attempts to my other account also.
Thanks for your suggestion.