Question

Why were the British unpopular in the sikh kingdom after the first ANGLO Sikh war

Answer 1

British followed a policy of aggression after the death of Maharaja Ranjit Singh.   They targeted the Sikh regimental panchayats and declared it as a dangerous form of military democracy.  The British started a military cantonment in Ferozepur and annexed Sindh territory in south of Punjab.   This was a reason for public outrage in Punjab and led to the 1st Anglo-Sikh war.

Answer 2

Answer:

Because the Britishers wanted to capture on west - northern part of India which was sikh plurality region.