At this critical moment Barnard ordered Showers to charge the enemy's guns, a service which was performed with heroic gallantry by Her Majesty's 75th Foot, who carried the position at the point of the bayonet, with a loss of 19 officers and men killed and 43 wounded.
Then, supported by the 1st Fusiliers, the same regiment dashed across the road and burst open the gates of the serai.

A desperate fight ensued, but the sepoys were no match for British bayonets, and they now learnt that their misdeeds were not to be allowed to go unpunished.

Graves's brigade, having passed round the _jhil_,[8] appeared on the enemy's right rear, while Grant with his Cavalry and Horse Artillery threatened their left.

The defeat was complete, and the rebels retreated hastily towards Delhi, leaving their guns on the ground.
Although the men were much exhausted, Barnard determined to push on, for he feared that if he delayed the rebels might rally, and occupy another strong position.
From the cross-roads just beyond Badli-ki-Serai could be seen the Ridge on which the British force was to hold its own for more than three months during the heat of an Indian summer, and under the rain of an Indian monsoon.

At this point two columns were formed, Barnard taking command of the one, which proceeded to the left towards the cantonment, and Wilson of the other, which moved along the city road.
Wilson's column fought its way through gardens and enclosures until it reached the western extremity of the Ridge.