Lucknow: A question asked in an exam in IIT Kanpur has gone viral on social media for fusing politics, engineering, and a hint of humor. The inquiry pertains to former Delhi chief minister and IIT graduate Arvind Kejriwal, who, following the recent loss in the Delhi Assembly elections, desires to listen to Prime Minister Narendra Modi’s "Mann Ki Baat" on Vividh Bharti FM (105.4 MHz). The viral question was asked for 2 marks in the exam posed by he Department of Electrical Engineering.
Here’s the viral question asked by the Department of Electrical Engineering in IIT Kanpur:
After a crushing defeat in the Delhi elections, IIT Alumnus Mr. Arvind Kejriwal wants to tune into the "Mann ki Baat" program by our Prime Minister on the Vividh Bharti (AIR) FM 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 channels Radio Nasha (107.2 MHz) and FM Rainbow Lucknow (100.7 MHz) by at least -60 dB. Since he spent a lot of money during the election campaign, he can only afford a resistor of 502, a variable inductor and a variable capacitor to design this filter. Can you please help Mr. Kejriwal design this filter using the R, L, and C components and find out: (a) the quality factor (Q) of this filter. (b) the values of inductance and capacitance needed.
The sub-questions had a weightage of 2 marks each.
Posting a picture of the question paper on X, Ravi Handa, founder of Handa Education Services and a graduate of IIT Kharagpur, with a caption that reads: "IIT Kanpur Prof is trolling Arvind Kejriwal via an exam paper."
The post mostly left Twitterati amused. But some said the IIT has to set guidelines for question-paper setting.
Delhi Assembly Elections
Kejriwal-led AAP was defeated in the 2025 Delhi Legislative Assembly election. He even lost his seat against Parvesh Verma by a margin of over 4,000 votes from the New Delhi Assembly constituency.
