NOIDA: A US-based businessman was allegedly confined to his rented flat in Pari Chowk for over a year and cheated of Rs 2.7 crore by a group of four persons who promised to treat his heart ailment using “supernatural powers”.It was in March last year that Sanjay Sharma came from California to treat his heart blockage. He took a flat on rent in NRI City in Pari Chowk and started staying there alone....