Kolkata, Feb 27 (PTI) Wars in ancient India were more civilised, humane and  ethical than the conventional strifes of today, according to Bangladeshi writer and human rights campaigner Shahriar Kabir.  "The do''s and don"ts followed during wars in ancient India were more civilised and humane than those followed now," he said.  Citing examples from Indian epics, he said the wars followed ethical norms like non-use of weapons on the unarmed enemy, no strike after sunset and humane treatment of prisoners of war.  "Lakshmana and Arjuna are said to …