Critical response Ajab Prem Ki Ghazab Kahani received positive reviews from critics upon release. Subhash K. Jha states, "If you've ever wondered what on earth is on-screen chemistry here's your one-stop all-purpose encyclopedia on celluloid magic. Fasten your 'see'-it belts, as veteran filmmaker Rajkumar Santoshi sheds all his
lajja, and pulls out all stops to do a wacky goofy edgeless weightless comedy of characters who walk in and walk out of frames leaving behind fumes of old-fashioned funnies.
Ajab Prem Ki Ghazab Kahani is an airtight trapeze down that familiar romantic lane."
Nikhat Kazmi of the
Times of India gave it four stars out of five and states: "The newly formented Ranbir-Katrina chemistry sets the screen on fire in this mad hatter's tea party. Adding to this is Pritam's peppy music score with Neeraj Shridhar, Atif Aslam, Hard Kaur, Sunidhi Chauhan and Mika raising a toast to a high-spirited song and dance and Raj Kumar Santoshi penning some of the funniest dialogues in recent times and you have a great escape awaiting you at your favourite audi this weekend. Go, have a ball."
Taran Adarsh of
Bollywood Hungama gave the film four out of five stars arguing that it "entertains majorly" and that "the romantic moments are endearing. Most importantly, the on-screen chemistry is electrifying. Ranbir and Katrina look great together!" Noyon Jyoti Parasara of
AOL India gave 3 out of 5 stars saying, "Its strong point, apart from Ranbir, happens to be its clichéd settings." Omar Qureshi of
Zoom gave 3.5 out of five stars saying that "The main point to be noted in the film is that, the film is totally dedicated to loving and all the things that are related to love and so, it will leave an ever lasting impression on youth." Minty Tejpal of
Mumbai Mirror gave 3.5 out of five stars, saying that "It seems that Ranbir Kapoor can do nothing wrong. He is just fantastic through the film." Mayank Shekhar of the
Hindustan Times gave it one star and said that "The film has no comic bone at all. There is certainly no romance either."
Rajeev Masand of
CNN-IBN gave it 2.5 out of five stars and said that "
Ajab Prem Ki Ghazab Kahani is a silly comedy that goes for slapstick gags and juvenile jokes that are hard to appreciate."
Box office Ajab Prem Ki Ghazab Kahani collected a net India gross of on its opening day, and 38 crore in its opening week. It was declared Semi-Hit at the box-office having collected a lifetime gross collection of in India, including a nett income of , and from overseas box office, thus making a worldwide total of . It was the third
highest-grossing Bollywood film of 2009 behind
3 Idiots and
Love Aaj Kal. ==Soundtrack==