Aam Aadmi Party MP Raghav Chadha today said that his party forced Prime Minster Narendra Modi to "walk for 50 kms" in Gujarat to ensure a win in the Gujarat Assembly elections. "PM had to walk 50 kms, knock on doors of voters, our challenge forced them to sweat it out in the streets," he told NDTV, adding that AAP's spirited campaign made BJP top leaders, including the PM, sweat it out in the streets.