Guwahati: Eighteen opposition parties in Assam, under the banner United Opposition Front Assam, lodged a police complaint against chief minister Himanta Biswa Sarma at the Dispur police station in Guwahati on Wednesday over his alleged communal statements made by him recently. Assam chief minister Himanta Biswa Sarma The complaint, which HT has seen, stated that Sarma was trying to promote …