Salman Khan and Katrina Kaif's 'Tiger Zinda Hai' collected Rs 33.75 crore on the day of release. As the film continues to rake in the moolah at the box office, director Ali Abbas Zafar couldn't resist treating the lead actors. Khan, who was shooting for 'Race 3' at Mehboob Studios, was joined by Kaif and Zafar on the set. The trio ended up having an impromptu celebration. A source tells mid-day, "Dropping in on the set was Ali's idea. He was under tremendous pressure because the year saw a lot of duds. But he's relived that his film has garnered good reviews. Yesterday, he called Katrina and convinced her to accompany him to meet Salman."

Ali Abbas Zafar, Salman Khan and Katrina Kaif were all smiles on the set of Race 3 last night