From a military point of view, the broad front front plan of XI was a necessity as well as beneficial....
...there are three approaches from Indian side towards lahore ---Amritsar-Lahore (shortest), Harike-Khalra-Barki and via Kasur....
XI Corps faced a major battle at each of these entrances, its 15 Division at Dograi on the Amritsar-Lahore approach, its 7 Division at Barki and its 4 Mountain Division at Kasur - Khem Karan - Asal Uttar.
XI Corps attack along these approaches, with a Division each, had the advantage of a converging attack (since all these approaches converge on Lahore)....which would make it difficult for PA 10 and 11 Division to hold....converging attack also meant that the more XI Corps advanced, the problem of inter Divisions (7, 15, 4 MD) support in terms of shifting of schwerpunkt would get easier...
....However, conversely, from PA view, the more XI attack came inside Pakistan, the more compact PA defences would become...its just like you may have a 100 men against 1, but due to geo constraints you have to pass through a defile or a single door, as a result, that 1 man can hold a bigger force for a long period of time....like 300 Spartans.
One of the reasons that Harbaksh gave, and that in retrospect I should have taken on board with much greater respect, was his logic that the Ichhogil Canal was a two-edged sword: that while it was a formidable defence for the Pakistan Army against any attack on Lahore by the Indian Army, if the Indian Army could traverse the land gap between the border and the canal, the canal would become the Indian Army defensive line against the Pakistan Army itself.
This was also a reason for attacking the four bridges - Dera Baba Nanak, Bhaini Dhilwan, Dograi and the minor bridge near Jallo - to stop up any opening for counter-attack; so, too, for the bridge at Barki. The bridges further south, within the area of 4 Mountain Division near Kasur, are not included in these.
In order to cover the wide gap between 15 and 7 Division, IA deployed an adhoc force name RAJA TAL force.
XI also took away 96 Brigade under its own direct command in order to protect Amritsar against any PA attempt to take it..
THE BRIDGE AT BHAINI DHILWAN AND 96 BRIGADE
96 Brigade keeps popping in and out of the narrative; it may be recalled that 38 Brigade, operating to the north of 54 Brigade under the general command of 15 Infantry Division, had assigned 1 Jat to capture the Bhaini Dhilwan bridge. As has already been mentioned, 1 Jat got to the bridge, but retreated under heavy artillery and tank shelling. This was on the first day itself, on the 6th September.
This, among other things, including the air attacks on 54 Brigade, with heavy casualties to 13 Punjab, and the difficult passage faced by 15 Dogra, that stopped it from leapfrogging 3 Jat and attacking its objective, the bridge at Dograi, altogether, gave the 15 Div commander an impression that further progress was impossible, and he conveyed this to his Corps commander, General Dhillon. On personally inspecting the situation, along with the Army commander, Dhillon found that there had been casualties, but the situation was not out of control. 15 Div was ordered to continue, and 6 Kumaon was detached from 96 Brigade to support 1 Jat in taking the Bhaini Dhilwan bridge. This was attempted on 7th September, but did not succeed. On 8th September, the Pakistan Army counter-attacked, and put pressure on the combined forces of 6 Kumaon and 1 Jat, on the Ranian axis where they had retreated from their firm base established to attack the bridge.
To relieve pressure on 15 Div., 2 Armoured Brigade under Theograj, fresh from its exploits in the Kasur sector, was brought in on 13th September. 96 Brigade was freed up to take on the pressure, and by 14th September, had pushed back against the attacks, and captured the bridge at Bhaini Dhilwan.
Just a point of trivia....the presence of PA 11 Division was NOT KNOWN to Indian int orgs before the war.....they came to know about it once they came face to face with it
This adds to the failure of Military Intelligence to anticipate trouble for XV Corps, and to spot preparations for Grand Slam against 10 Division of XV Corps.
Coming specifically to Lahore and PA 10 Division
Main advantages enjoyed by PA 10 Division were....
BRB....already running parallel to IB, a ready made defence line.....ideally located at a distance from IB which allow PA to sufficiently attrite IA attack before the battle of BRB starts....
1/5 of 10 Division front in the north, almost 9000 yards......IA will have to face twin obstacles in the form of BRB and Ravi both...
Two approaches from Indian side towards Lahore...IA force to advance wide apart from IB, which allow 10 Division to respond to both thrusts separately without facing the joint power of 2 IA divisions....
As you mentioned in a parallel discussion on US 3 Army under Patton during the Battle of the Bulge, the numbers were approximately the same, but the cohesion among the 3 Corps that Patton handled was severely more effective than the cohesion among the 3 Corps, XV Corps, XI Corps and I Corps, that Indian Army Western Command handled.
Good of you to mention PAF attacks against 54 Brigade ad 15 Dogra. PAF later on attacked 38 Brigade as well, 13 Punjab was routed as a result.
I wonder if you have Major General Jogindar Singh's book* on the conflict. He was Chief of Staff to Harbaksh Singh, and had rather a high opinion of himself. On this point, of PAF activity, Harbaksh lays the blame squarely on him for the failure of the IAF to give the Army support, stating that without consulting him, Jogindar had consented to the withdrawal of the IAF from Ambala. Harbaksh was unable to get air cover although originally XI Corps had been assigned 24 sorties and air control teams had been attached to Army formations.
Behind The Scene: An Analysis of India's Military Operations 1947-1971 Maj Gen (Retd) JOGINDAR SINGH, VSM (Class I) ISBN: 9781897829202
Reasons that IA was not able to consolidate 3 Jat success...
Repeated PAF strikes on follow-up echelons
Lack of foresight on the part of IA commanders
Absence of determined leadership at IA Brigade upwards
....in effect, it was a cheap victory which was thrown away
At one point, Col. Hayde was less than 5 kms from Lahore International Airport.
Just a side note....
There was a real worry on Indian side after the move of 2 IABG from Lahore front to Khem Karan on 13 Sep
XI Corps Commander, being a Sikh himself, somehow was haunted by Pak thrust towards Amritsar...therefore he constituted BHARAT FORCE, which was composed of RAJA TAL force and minor units of 2 IABG, its task being to save Amritsar while being prepared to support 15 Division...interesting point to note is that there was NO armr reserve with GOC 15 Division or Commander Bharat Force.
This, as you know, was due to the sudden recent formation of I Corps and posting of Major General Dunn as Corps Commander; originally 1 Armoured Div was the armoured reserve of XI Corps.
@Joe Shearer
50 Para Brigade attack...
Coming to that, as a prelude to the Battle of Dograi.