Question

why did banda bahadur fail to strengthen the sikh power

Answer 1

The failure of the army to kill or catch Banda Singh shocked Emperor, Bahadur Shah and On 10 December 1710 he ordered that wherever a Sikh was found, he should be murdered. ... During this time Sikhs were being persecuted especially by Mughals in the Gurdaspur region.

Answer 2

Banda's original name was Lachhman Dev. He was born in Kartik 1727 Bikrami Samvat, October-November 1670, four years after the birth of Guru Gobind singh. He belonged either to Kashmir or Punjab. He was a Rajput cultivator. By the time he was just turned 20, his astonishing mind was set on its task. He had a reputation of being a great hunter. One day he killed a doe which immediately delivered itself of two cubs which expired in his presence. The sight shocked him. He renounced worldly life and became a bairagi sadhu or a wandering hermit and ultimately settled at Nander on the banks of river Godavari in Maharashtra. He won great fame as a sorcerer under the name of Madhodas and commanded thousands of followers.