What stops the other sides from raising the same hordes and neutralizing ours?
Actually trained manpower is what is exactly required, hordes would prove to be only cannon fodder. I still remember a Soviet Divisional counter-attack outside Moscow against a German battalion group. The whole Division was massacred without a SINGLE casualty on the German side, thanks to their well sited automatics and infantry guns.
You are following OKW's / OKH's footsteps. A Divisional flag marked on a map doesnt necessarily mean that it is a full fledge, superbly trained formation and well equipped as well.
Some unasked-for input: The CRPF is today 300,000 strong, 1.5 times as many as the 'conscripts' being conjured up like Cadmus soldiers. They are already engaged in counter-insurgency against insurgents, badly armed ones, but ones who have resisted being overcome.
The Border Security Forces are 260,000 strong. They are the equivalent of Pakistan's rangers, but AFAIK, far outnumber them.
The Assam Rifles number more than 60,000 riflemen, with many decades of campaigning under their belts.
We are informed that the 'South Indians' will not fight in the North; it has nothing to do with them. As you probably already know this, please point out the ethnic composition of the Thambis, the Madras Regiment, and please point to the leadership of a host of 'South Indian' officers, including several Chiefs of Army Staff, and Chiefs of Staff of the other two services. Finally, please do use the example of 404, 405 and 405 field companies of the 9th Engineer Regiment, who opened up the minefields in Basantar, after the failure of the tank flail, manually, and guided tanks through standing right there in the middle of the minefields. Their CO and two other officers got Vir Chakras (Major Choudhary and Captain Gupta posthumously), and got battle honours as well as theatre honours. I could go on, but it seems a bit pointless. For dashing young Internet heroes, it might be brought to mind that this was where Arun Khetrapal with his squadron stopped the Pakistani attack, losing his life in the process, and where the Hamoodur Commission wanted the GOC Pakistani I Corps to be cashiered.
Regarding conscription in India, we will not need it, although you have pointed out what might happen if we did. The Indian Army in that case would be able to open fronts and move into offensives at will, or, more likely, firm up defensive positions with plentiful secondment of conscripts,
after exhausting their para-military troops, the CRPF, the BSF, the Assam Rifles (that's 620,000 in all), all without even touching the Eastern Frontier Rifles, the parent body of the Bangladesh Border Guards when they were first constituted as the Bangladesh Rifles. You will of course remind advocates of this Aladdin's Lamp solution that 200,000 out of 220 million is 0.001; that figure applied to the Indian side would yield 1,300,000 able-bodied equally trainable people. If we were to play the numbers game, that would be 1.92 million men over and above the existing strength of the Indian Army, Navy and Air Force, counting the BSF, not counting the SSB and other border units and also not counting the Coast Guard.
Trying to overwhelm Indian defences with a sea of under-trained, under-armed people will not end well for the attacking force; contrariwise, if it pushes India into steps not taken nor contemplated so far, there will be the devil to pay. If you get an opportunity to slide in a word edgewise, do please point out that the military machinery already exists in embryo on the Indian side, in the form of the NCC, the Territorial Army and the not insignificant numbers of reservists.
Since you have already demonstrated that you know far more than you should, you might very kindly, as an aid to memory to the old and failing in their faculties, recall the
existing amphibious capacity in the Indian armed forces (not projected, not planned, not brought into existence through the gigantic deus ex machina that is your higher than the mountains ally), and you might know which Indian Army formations have been earmarked for these. If I remind you of more, that might lead to trouble (for me); you may or may not know those additional facts, but these are not properly gifted to opposing intelligence. Suffice it to say that we are not alone in possessing a very long coastline, and desperate efforts at creating resources - a military area, no doubt to be developed into a cantonment, an air base, additional harbour facilities, additional submarines, additional air force resources committed to maritime surveillance.....the whole nine yards - are not likely to be useful in one day or two. Meanwhile there is a force in existence, and practised and rehearsed.
It is difficult to believe that this thread exists.