At dawn on 20 December, the front of the Indian Corps, held by the Lahore and Meerut divisions was bombarded by German heavy artillery and mortars.
At 9:00 a.m., ten mines, of 50 kg (110 lb) each, were exploded under the British lines at Givenchy-lès-la-Bassée (Givenchy) and followed up by infantry attacks from the village northwards to La Quinque Rue.
The trenches either side of Givenchy were captured and east of Festubert German troops advanced for 300 yd (270 m).
During the afternoon, a brigade of the 1st Division (I Corps was sent forward as reinforcement, followed by another brigade at 3:17 p.m. Next day, both brigades rested until noon and then attacked towards Givenchy and the break-in near Festubert.

The third 1st Division brigade arrived during the afternoon and was sent forward to recapture The Orchard 1 mi (1.6 km) north-east of Festubert, which had been captured during the morning.
Waterlogged ground and German machine-gun fire delayed the advance, which only reached Givenchy after dark, just after the garrison had retired.
The 1st Guards Brigade and French Territorial troops retook the village but the disruption of the counter-attack left a small amount of ground near Festubert on the northern flank in German hands.
The 1st Division brigades were isolated in the dark and the Indian Corps commander reported that the troops were exhausted and must be relieved.
It was arranged through General Headquarters, that I Corps would relieve the Indian Corps on 21 December, which was completed on 22 December.
At dawn on 20 December, the front of the Indian Corps, held by the Lahore and Meerut divisions was bombarded by German heavy artillery and mortars. At 9:00 a.m., ten mines, of 50 kg (110 lb) each, were exploded under the British lines at Givenchy-lès-la-Bassée (Givenchy) and followed up by infantry attacks from the village northwards to La Quinque Rue. The trenches either side of Givenchy were captured and east of Festubert German troops advanced for 300 yd (270 m). During the afternoon, a brigade of the 1st Division (I Corps was sent forward as reinforcement, followed by another brigade at 3:17 p.m. Next day, both brigades rested until noon and then attacked towards Givenchy and the break-in near Festubert.
The third 1st Division brigade arrived during the afternoon and was sent forward to recapture The Orchard 1 mi (1.6 km) north-east of Festubert, which had been captured during the morning. Waterlogged ground and German machine-gun fire delayed the advance, which only reached Givenchy after dark, just after the garrison had retired. The 1st Guards Brigade and French Territorial troops retook the village but the disruption of the counter-attack left a small amount of ground near Festubert on the northern flank in German hands. The 1st Division brigades were isolated in the dark and the Indian Corps commander reported that the troops were exhausted and must be relieved. It was arranged through General Headquarters, that I Corps would relieve the Indian Corps on 21 December, which was completed on 22 December.
Winter operations 1914–1915