Lalwani is the current Member of Parliament from Indore parliamentary constituency of Madhya Pradesh. He is one of the handful of politicians to have polled more than 10 lakh votes in a Lok Sabha election, having breached the barrier in May 2019. He polled more votes in 2019 than any other Lok Sabha member. His winning margin was 5 lakhs, with many candidates winning with higher margins than that, especially in Gujarat.