After getting inked, he posted his photograph on Twitter and urged his followers to do the same.
`I just voted. Have you? Be serious, get off your a** and go vote,` he tweeted.
Filmmaker Karan Johar, who gave the young actor a break in the acting industry, shared Varun's swimwear shot on Twitter and wished him: `Happy birthday Varun.`
Meanwhile, Varun's `Main Tera Hero` co-star Nargis Fakhri used the microblogging site to shower him with hug and kisse.
`Happy birthday. May god bless you now and forever! Sending a big birthday hug and kiss to you all the way from Budapest! Love you kid,` she posted.
Actress Bipasha Basu also wished the `hero`.
`Happy birthday Varun. Enjoy hero! Hugs,` she posted on Twitter.
