A 33-year-old Hyderabad based software engineer on Monday approached KPHB police alleging that he has been cheated of over Rs 1 crore by a woman on the pretext of marriage. The culprits were 44-year-old Malavika Devati and her 22-year-old son Venkateswara Pranav Lalith Gopal Devati who were arrested last week for duping a US-based NRI of Rs 65 lakhs in a matrimonial fraud.