Karnal, Aug. 14 -- At least six cops, including a DSP-rank officer, were injured in Ambala as police removed Sikh protestors from staging dharna on the Amritsar-Delhi NH on Thursday. The traffic movement resumed on the key highway around 9.15 pm after police fired multiple tear gas shells and used mild force to remove the protestors. The protestors laid seize to the highway around 3 pm demanding action against Gursimran Singh Mand, chief of the International Anti-Khalistani Terrorist Front, release of Sikh youths. P4...