Thousands of voter ID cards, most reportedly linked to Indore's Rau Assembly constituency, were found along the Narmada riverbank in Madhya Pradesh's Khargone district. Officials seized the cards. Cards reportedly bearing Indore addresses found during river-cleaning drive; Congress seeks probe into how they got. A total of 343 voter identity cards were found abandoned on the banks of the Narmada river in Mandleshwar town of Madhya Pradesh's Khargone district on Sunday, following.