There is a person registered as "vaibhav deshmukh" (no underscore) whose info is found
here. If that is you, you can retrieve your password (assuming you've forgotten it) by selecting the "Forget your password" link found on any page that asks for a pasword. The password will be e-mailed to the registered address,
vande_v15@hotmail.com in this case. If that's not you, then unfortunately you can't have the name you want; it's been taken by someone else before you. I suggest creating a new ID which is similar to the one you want, but different enough to be accepted as a unique name. Perhaps "Vaibhav Punekar Deshmukh", "Vaibhav P. Deshmukh", or something similar.
Unfortunately, there is no way for us to transfer your total posts as "Vaibhav Punekar" to another account. If you want to create a new account, the total posts will start at zero. Our software simply doesn't support other options here. Sorry for the inconvenience; however I'm confident you can reach 30 posts again in short order if you put your mind to it. Hope this helps...