Uber India — my email account is being used by somebody

Address:

New Delhi, Delhi, 110091

I find to my astonishment, that my email account [protected]@gmail.com is being used by one mr vivek bajaj from culcutta. When i type my phone number it says it is already registered. If i reset my password through my email address it shows the ride done by mr vivek at culcutta. How can i get my account back so that i can use your services.
My profile:
Name: subba rao y v
Phone no: [protected]
Address: 177-c, pocket-1, phase-1, mayur vihar, delhi-110091
My alternate email: [protected]@yahoo.com.