With less 20 days for the first phase of polls, the BJP moved into high gear Saturday with Home Minister Amit Shah, Chief Minister Yogi Adityanath, and party chief JP Nadda on the campaign trail in politically key western Uttar Pradesh, which votes on February 10. Amit Shah will hold a door-to-door campaign in Kairana district - where the BJP hopes to use the 'Hindu migration' controversy - and address a public meeting in Shamli.