Khaitan was born in Kolkata and raised in Nashik, Maharashtra.
Although he was interested in watching movies since a very young age, he was initially more into sports, playing cricket and tennis tournaments. At the age of 17, he decided to pursue a career in entertainment.
Khaitan joined Whistling Woods International Institute (a film institute started and supported by veteran movie director Subhash Ghai) to break into the movie industry. He credits the institute with giving him the technical background, and also credits the institute's faculty (who work actively in the movie industry) with making him feel comfortable on set by inviting the students to accompany them to set
A large, quick, hard-working and physically strong player, he excels in the air, and is also known for his stamina, as well as his powerful and accurate striking ability from distance; he has also drawn praise for his finesse, technique, flair, and dribbling skills. His control of the ball and the way he can swiftly change the play from defence to attack is special.