To be perfectly honest, I had hoped that
@surya kiran would answer this. Having spotted an apparent opportunity arising out of the deployment of defensive forces, he needs to apply his mind to what else goes into the mix.
First, the PA must receive the same courtesy that the IA expected to be extended: there ought to be a 3:1 superiority in force to allow for an attack even a chance of success.
Second, between Hyderabad, Karachi (Malir) and Pano Aqil, there is sufficient force to defend, to require perhaps the equivalent of nine divisions - around 135,000 jawans, with their train of vehicles, of armour, of artillery, and of reconnaissance and scouting units, not to mention close air support, to be mustered. The question is not about the ratio; it is about the assembling of such a force swiftly enough, secretly enough to be able to mount an attack.
Where will they assemble? Where will they form up before commencing the assault? How will they fare, traversing extremely difficult and hostile desert terrain, to face an enemy safely parked on armour-friendly terrain?
Third, if the Pakistani forces are not dumb and deaf, and blind as well, they should be able to make out that things are going on in Jaisalmer and Barmer that need close examination.
This is Bhatti country (Jaisalmer); we have it on the evidence of
@Goenitz that Bhattis are disinclined to jump around in the terrible heat that prevails. Nevertheless, the presence of 135,000 troops looking for a swimming pool would arouse curiousity in the mind of the corps commander, V Corps; he would at least want to know if it was expected of him to provide supplementary quantities of swimming trunks.
Fourth, how much ammunition will be consumed by 9 divisions attacking a well-entrenched enemy? How will that ammunition - and fuel, and food, and evacaution of casualties - be replenished?
Karachi is defended by Kutch, the Indus Delta, and the River itself, on top of being armed to the teeth.
It is not armed to the teeth. Not in any formal manner.
On second thoughts, I agree that the large number of gun-loving people could be a major difficulty for an occupying force, but it should probably be the responsibility of any attacking commander with his wits about him to blockade the city, and refuse to have anything else to do with it.
It does not NEED to be armed to the teeth; the harsh operating environment through which an attack must come will take care of that.
India can try going for Hyderabad but that comes dangerously close to the tactical nuclear threshold. In my opinion, this threshold will be before Indian forces can reach the "Green Belt."
For the purposes of us civilians learning why generals do the things they do, thinking nuclear is not necessary, not at first blush.
Does India have the logistical capability for such a deep offensive? The Russians tried dashing for Kiev and it isn't going well for them. Driving supply trucks across the Indus Delta or the Thar desert isn't a pleasant experience once you sink into the ground. Neither is flying helicopters which will be shredded by MANPADS.
Um, it is not quite clear that helicopters will be shredded by MANPADS; flying conditions might be less than ideal.
And if India does pose an existential threat to Pakistan by attacking Karachi, will China sit by idly? By the time India has 45 divisions and 300 ships, the PLA will be comparable to the US Military. Let's not forget that Pakistan itself will have plenty of time to find some way to counter India's threat, as it historically has in far worse circumstances.
Oh, please, that was a sardonic remark.
Karachi is going to present Kyiv 2.0 - simply because all it will take is some overcharged religious message sent through the local mullah mosque announcement and you suddenly have armed people in the streets. This may actually serve as a deterrent to the inevitable criminal element rise that comes from national crisis as well. Long term it will be a mess to clean up again for the paramilitary forces but in the context of just putting a 100k armed guns in the street it will work… one of the very limited and few benefits of gun culture.
Not that it’s a smart move to try anything other than a blockade of Karachi or Hyderabad.
A truly horrific thought, considering the large numbers of Pathans with attitudes resident in and around Karachi and its suburbs. A little like invading Glasgow, and having to deal with Glaswegians and their attitudes and their razor blades; avoidable.
More importantly a lot will be BYOG (Bring your own gun) and a few thousand (if not a few tens of thousands) Jihadis in waiting.
Frankly a city where the state itself is at a loss on what to do doesn’t make a good place to try and land troops to take key areas. Unless they want to do a wild goose chase of looking for Dawood as a context.
I was just thinking of the shock and horror of a well-behaved, polite, and well-mannered Purbiyya up against this lot. Somehow, if it were possible, if this confrontation could be organised, it might resolve our Indian problem of socialising the Purbiyya. For all eternity.