WATCH: 'Challenge accepted!', say Hrithik Roshan and Saina Nehwal to 'push-up king' Col Rajyavardhan Rathore! But where's Virat Kohli?

Union minister Rajyavardhan Singh Rathore's #FitnessChallenge has scored two of its three intended targets, as Bollywood and the non-Cricket sports community have risen to the occasion!

Representing B-town is none other than Hrithik Roshan who we all know to be a fitness-freak and seemingly has no trouble integrating a workout into his daily work commute.

In a video posted on Twitter (even before Rajyavardhan Rathore!) Hrithik is riding a bicycle, complete with what look like gears and a digital pedometer, on the streets of Mumbai! Looking quite dapper with a cap of his own brand and his earphones plugged in, Hrithik says cycling is the easiest way to beat traffic and stay fit!

Further, Hrithik has challenged his parents Pinkie Roshan and Rakesh Roshan, as well as Tiger Shroff and Kunal Kapoor. 

Meanwhile, Olympic medal-winning shuttler Saina Nehwal has also taken up the minister's challenge and for her, fitness is clearly not a side-activity. Saina uses very heavy looking weights to stay fit as a fiddle and in the video she's posted, she's exhibiting perfect form as she lifts dead weight to waist-height. 

Saina has challenged her fellow shuttler PV Sindhu, Cricketer Gautam Gambhir and actor Rana Daggubati.

The last member of the trio whom Col Rajyavardhan Singh Rathore challenged, i.e. Team India captain Virat Kohli, hasn't yet participated. But with the others having done so, the pressure's on!

Here's the original challenge: