Union Home Minister Amit Shah was in Uttar Pradesh's Greater Noida for a poll-related programme when power supply got disrupted briefly, leaving the senior BJP leader, party workers and others in dark for less than a minute. Shah was addressing 'Prabhaavi Matdaata Samwad' (Effective Voter Dialogue) at a private university's auditorium in the Knowledge Park area of Greater Noida where BJP supporters and local residents had gathered in the evening.