Irrfan, 46, who also co-produced the critically acclaimed movie, said it had the capacity to connect with the world audience.
"Whatever the responsibility of the body is, they should have done a good job. I am just disappointed as it was a film with a new language and has the capacity to connect with the world audience. That film was unique in its own way.
The Film Federation of India-appointed committee, which was headed by veteran filmmaker Goutam Ghose, chose Gujarati film "The Good Road" for Oscars 2014.
Irrfan is not the only member from the film who has expressed his disappointment. Producers Anurag Kashyap, Karan Johar and director Batra had lashed out at the selection committee for their decision.
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Irrfan also feels that he is chasing his dreams with each of his film projects.
"We all are dream chasers. I am delighted that Vipulji called me to introduce his book to the world. When I read the book it reminded me of my days in NSD (National School of Drama). I am jealous of writers like him because I lost many girlfriends as I couldn't express my feelings beautifully in love letters," he said.
With "The Lunchbox", the National-award winning actor had also made a comeback to the romance genre after the 2009 film "Billu".
The film is a romantic sojourn of a cynical government employee, who falls in love with a lonely housewife via exchange of letters hidden inside wrong delivery of lunchbox.