Clarification on cheating, dowry and false promise to marriage

my age 27, Caste Punjabi, Religion Hindu. I have had roka on Nov 13, 2016. Things were all good between both families. The guy is a pilot, the guys mother had multiple times said she would get us married in a day if someone gave her 50 lacs. On jan 13 the marriage date was decided by his family. Obviously marriage dates are decided mutually not over one call. My dad tried o convince the guy family for face to face meeting, they kept delaying it and then in 2 days they say marriage is been called off. I try to connect with guy, and he write me that his family needs 50 lacs, and cant say, since we both love each other i could manage this amount for him. He had sex with me post roka, and another 3 times post that, saying u cant deny now, we are going to get married. He has ran away and his parents are waiting for my father to beg to them. Please suggest what should i do, Does he qualifies for cheating and dowry act. If yes then how should i proceed