India, April 7 -- Assam Police, accompanied by Delhi Police personnel, arrived at Congress leader Pawan Khera's residence in Nizamuddin East, Delhi, on Tuesday morning, escalating the political row sparked by his recent allegations against Assam Chief Minister Himanta Biswa Sarma's wife, Riniki Bhuyan Sarma. Khera, who serves as the head of the Congress Media and Publicity Department, had alleged at a press conference on Sunday that Riniki Bhuyan Sarma possesses three passports and that the Sarma family has business interests worth 52,000 crore in the United States.When the police reached his Delhi home, Khera was not present. Party sources confirmed that he is currently in Hyderabad. The officers carried out a search of the premises and...