New Delhi, Feb. 22 -- IIT Kanpur has grabbed everyone's attention by turning the political rivalry between Prime Minister Narendra Modi and former Delhi chief minister and AAP chief Arvind Kejriwal into an intriguing engineering question during an exam.

The question featured both PM Modi and Arvind Kejriwal and started with the AAP chief's crushing defeat in the Delhi elections and the little funds he is left with. This set up the scenario for the engineering question.

The question said that Arvind Kejriwal wants to listen to Mann ki Baat programme of PM Modi at a frequency of 105.4 MHz.

"Mr. Kejriwal wants to design a filter which may pass the content of Vividh Bharti channel while attenuating (rejecting) the adjacent FM radio channel...