Shabbir Ahmed, who has penned songs like 'Teri meri' and 'Jumme ki raat', is venturing into a new zone with the commercial sci-fi comedy 'Mangal Ho'. He finds it challenging, but he is putting in an extra effort to entertain the audience.

"They (makers) gave me a situation for 'Mangal Ho' and I wrote a few compositions according to that, and they loved it.