Actually I was ASKING if that particular bridgehead could be used for an offense by II Corps towards Fazilka?
Short reply, yes.
Back in 1971, the bridgehead was created and 105 Bde Group went on defensive after creating the bridgehead. Now if you read on wikipedia it will tell you glorious stories of Indian victory in Fazilka, how the attack by 105 Bde was stopped and Pakistani attack on Fazilka was stalled and what not. It didn't happen like that.
105 Bde Group had 18 Baluch Regt, 7 Punjab Regt, 6 FF Regt, a battalion of Rangers and a Squadron of up gunned Shermans supported with an artillery regiment.
Facing was Indian Army 67 Bde Group comprising three infantry battalions (4 Jat Regt, 3 Assam Rifles, 15 Rajput Regt), one field regiment, one medium battery ,one independent armoured squadron of Sherman-75s from the Infantry School and another armoured squadron equipped with T-54 tanks with two battalions worth of the Border Security Force (BSF). Later another battalion 3/11 Gorkha Rifles was also allotted and took part in combat. Another Armor Squadron was sent in combat after Indian armor took losses.
In reality, 105 Bde Group attacked BSF posts after shelling and then started its advance towards Distributary and captured it along with a bridge or two. Rest of the bridges (total 23) were blown up by Indian Army in haste as it was thought that 105 bde Group will keep advancing into Fazilka. This hampered any offensive moves Indian Army for future. 105 Bde Group had accomplished its task by creating bridgehead and now awaited II Corps to consolidate and advance through Fazilka.
II Corps was made up of 1st Armd Div and 33 Infantry Div. In 1971, both armies didnt employ their Armor Divs, both waiting for other to launch its Armd Div first and thus both lost initiative. 33 Infantry Div was divided and its battalions were sent towards Sind. So II Corps wasn't coming.
What was 105 Bde Group to do then ?
II Corps wasn't coming to take advantage of 105 Bde Group gains so the bridgehead were needlessly created. 105 Bde then bore the brunt of 5 failed counter attacks by 67 Bde Group. The Indian Brigade Commander was sacked and replaced with a new commander. The Indian GOC of the sector was wounded in action as he came to aid the Indian Brigade Commander along with his Commander Artillery Brigade, and was thus replaced too. These changes were made by Indian Chief of Army himself during the war witnessing the dismal performance of 67 Bde Group. It was after 15th December that 67 Bde Group was able to take a small part of land that 105 Bde Group had held while the 1971 war ended soon.
Indian Army's 67 Bde Group had lost 190 killed, 425 wounded and 196 missing in action with loss of 8 T-54s and several Shermans. 4 Jat Regiment and 3 Assam Regt had suffered the most causalities. Out of the 8 T-54s destroyed, 4 were destroyed by Major Shabbir Shareef's B-Coy 6 FF Regt. This was the result of 5 failed Indian counter attacks between 7-11 December and the fight after that till end of war.
While the Indians celebrated that Pakistan Army couldnt take Fazilka, it was the Indian Army 67 Bde Group that failed to dislodge Pakistan's Army 105 Bde Group which had crossed IB and captured distributary area waiting for II Corps to exploit its gains while II Corps never showed up.