What's keeping Varun Dhawan busy in Kargil?

And why is he posing shirtless, showing off his muscles?

Varun Dhawan has started shooting for Karan Johar's Kalank in Kargil.

Posting an Instapic, Varun wrote, '#KALANK- was in for a huge surprise when it began to snow in Kargil. I have been training for a while but I was not sure how I would shoot bare body with the temperatures reaching -3 degrees.'

'@prashantsixpack was by my side. God is great I managed to complete the scene rest is cinema history. Also Kargil is sooo dam beautiful.'

Kunal Khemu -- who also features in the period drama -- and Varun paid homage to the martyrs at the Kargil War Memorial.

'A salute to the fallen and the ones who stand tall and live tough and dangerous lives all so that we can live safely. At the Kargil war memorial with @varundvn and our brothers in uniform #jaijawan', Kunal posted on Instagram.

Kind courtesy: Varun Dhawan and Kunal Kemmu/Instagram