text: On April 10 , 1919 , there was a protest at the residence of the Deputy Commissioner of Amritsar , a city in Punjab , a large province in the northwestern part of the then unpartitioned India .
simplified: On April 10 , 1919 , a protest was held at the residence of the Deputy Commissioner of Amritsar , a city in Punjab , a large province in the northwestern part of what was then undivided India .