Say hello to Yasmin Karachiwala!

Bollywood's stunning leading ladies have been posting pictures of themselves with a gorgeous and terribly fit young lady, and we couldn't help but wonder who she was.

Well, it turned out to be fitness expert Yasmin Karachiwala, who has given these gals those enviable bodies!

Yasmin has worked closely with Katrina Kaif (click here to see what she thinks of Kat's fitness) as well as Bipasha Basu, Alia Bhatt and Kriti Sanon.

Bipasha points to her 'dearest girlfriend.'

The Bong actress, of course, is one of the friendliest actresses in the industry.

Alia Bhatt shows off her moves, and tweets, 'Happy birthday to the person, who will LITERALLY always have my back :)'

Kriti Sanon plants a kiss on the birthday girl's cheek.

Photographs: Bipasha Basu, Alia Bhatt and Kriti Sanon/ Instagram