The quiet charm of Kasauli, long celebrated as a weekend retreat for weary city dwellers, is fast turning into a cinematic hotspot as Bollywood and TV crews flock to the hill station. Aditya Dhar’s spy thriller starring Ranveer Singh and Sony TV’s Undekhi 4 are being shot here, boosting local businesses hit by recent rains, buzzing with a new rhythm, the call of "lights, camera, action!"