Mumbai, Feb. 13 -- Filmmaker Karan Johar can't stop praising Shanaya Kapoor and Adarsh Gourav's survival thriller 'Tu Yaa Main'.

Taking to his Instagram handle, Karan Johar posted a long note, describing the film as "traumatising (in the best way possible)".

"NO CARDIO NEEDED! You will physically jump out of your seats right through the second half of this traumatising (in the best way possible) survival croc edge of the seater! Swimming pools will never be the same for me again.... NEVER! And if you happen to have a partner this Valentine.. take them to watch #tuyamain and tell them to wear armour because you will clutch onto them in FEAR!!!!

https://www.instagram.com/p/DUsOiKAiNmb/

Noting that he was left in "stress" after watching ...