I came across a very intelligent answer from quora which I wanted to share.
On a more serious note ,They think we don't know where their nukes are stored ,only Indian knows the nukes.
My name is not important but I have the answer to this question. I have given the location at the end of this answer but before knowing the location there are few important things to know. First and foremost it must be realized that even though the Pakistani forces are incapable to provide security to their own citizens today, they have however made sure that their nuclear missile bases are secured and safe. Several of these bases have been rounded with 4–5 fences and the facilities are often underground.
Now to know the location of Pakistan’s nuclear bases it is essential to understand the country’s nuclear doctrine (i.e to understand in what way does Pakistan intend to use it’s nuclear weapons if the situation arises).
PAKISTAN’s NUCLEAR DOCTRINE
The reason behind the acquisition of Pakistan’s nuclear weapons was the need to make the price of attacking Pakistan so high that it’s enemy India would not launch a full scale war against it. This provides Pakistan with a very high threshold to export terrorists across the border/LoC into India without being worried about any major military offensive from the Indian side.
Pakistan knows it very well that if India declares a full fledged war against Pakistan, it is incapable of defeating or even stopping the Indian advance forces in today’s world. Therefore it needs to ensure that if overwhelming Indian forces march into Pakistan, they can use tactical nuclear weapons against them to stop them. Tactical nuclear weapons are smaller low-yield weapons which are not powerful enough to destroy a city but powerful enough to decapitate any advancing forces (in this case an Indian Strike Corps)
Now using tactical nuclear weapons against Indian forces is a very tricky situation as the nuclear policy of India dictates it crystal clear that India reserves the right to retaliate punitively(using mega-yield nuclear weapons against cities) if any country chooses to strike it’s territory or
it’s forces with nuclear weapons.
The deployment of Pakistan’s tactical nuclear weapons is in the hope that
if Pakistan attacks Indian Invading Forces with tactical nuclear weapons on Pakistani Soil then maybe somehow the world would imply pressure on India to stop it from a PUNITIVE RETALIATION.
This assumption is not entirely absurd, because since India’s own territory has not been attacked with nuclear weapons, the world might have some grounds to stop India from retaliating with a full-scale nuclear attack. The world might try to bargain non-retaliation from India in exchange for sanctions against Pakistan. This might also work since any punitive retaliation against Pakistan comes with a possibility of a similar counter retaliation from Pakistan as well(this time against Indian cities with higher yield weapons). Yes India has an Anti Ballistic Missile Defense system but the mere possibility of even 1% of it failing against a real nuclear threat is going to make Nuclear Retaliation a very difficult decision for Indian leadership unless it’s own territory has been nuked.
However, a lot depends on the leadership of the time in India and the general public mood of the time. So, if India chooses not to retaliate, Pakistan will be imposed with innumerable sanctions, diplomatic isolations, and international repercussions but
PAKISTAN WILL CONTINUE TO EXIST. Also, India will loose it’s entire Strike Corps but not win the war. That might not go down well with the Indian people though.
Therefore, there is also an equal possibility that India would not heed to the world and go ahead with it’s declared policy of MASS RETALIATION. Now, according to my present knowledge India is well aware of the information I am going to share below(regarding the locations of Pakistan’s Nuclear weapons) and India would try to ensure that in it’s first strike itself, it renders Pakistan incapable of a counter Mass Retaliation.
Now, to ensure that this happens India is most likely going to use it’s Air Force or conventional/nuclear tipped Brahmos supersonic cruise missiles as they are one of the few weapons with India which Pakistan does not possess the capability to intercept. The range of BrahMos is 290 Kms.
So following are the requirements that Pakistan has kept in mind while deploying it’s nuclear weapons.
1.) It needs two types of nuclear weapons i.e tactical low-yield warheads(for initial retaliation against advancing enemy forces) as well as Strategic high-yield warhead(for counter retaliation to ensure Mutual Assured Destruction)
2.) The low-yield warheads need to be deployed in forward border areas on shorter range ballistic missiles and forward airbases to ensure the shortest flight time to attack while the higher-yield strategic warheads need to be deployed away from borders on long range ballistic missiles to keep them out of range of Indian Air Force and BrahMos supersonic cruise missiles.
3.) The higher yield nuclear weapons to be well dug in to safeguard against any possible attacks from India.
Now, if you see the actual nuclear deployment of Pakistan, this is pretty much what they have achieved.
LOCATIONS OF NUCLEAR BASES OF PAKISTAN.
1.) TACTICAL NUCLEAR DEPLOYMENT OF PAKISTAN
- GUJRANWALA (Near Lahore) 32 14 27 N x 74 04 23 E
Construction b/w- March 2011 - August 2014
Deployment - Nasr TELs(60Km) and Ghaznavi (400Km)
Distance from International Border- 60Kms
Status- Active
- Two large hardened High Bay Garages (100x20m) with blast doors on the East and 5m wide exit doors on the west(below picture). Each garage is connected to the square launch platform with a 6m wide pathway
- Most likely they can accommodate around 10 TELs (Transporter Erector Launcher)
Tyre marks suggest that regular trials are conducted
2.
PANO AQIL (NEAR SUKKUR) 27 50 06 N x 69 09 28 E
- Construction b/w 2010 - 2015
- Deployment - Ghaznavi (400Kms)
- Similar to Gujranwala but smaller facility
- Distance from IB- 80–90Kms
3.
PAF AIRBASE MASHROOR (NEAR KARACHI) 24 53 43 N x 66 55 39 E
Recently constructed Operational Readiness Platform (ORP)
- Constructed b/w 3/2014 - 3/2016
- Construction- Hardened with RCC and Steel plates followed by RCC again. It contains an underground vault system together with Weapons Storage Bunker (WSB) connected with an underground passage of 30m
- Operational Aims-
- To have nuclear weapons and related aircraft at operational readiness at all times.
- Evade chances of India knowing if the weapon has been loaded or not.
- Ensure survivability of weapons even after First Strike from India.
- Deployments - Nuclear missile equipped Aircrafts which can take off at very short notice.
- Distances - 600Kms from Ahmedabad, 900Kms from Mumbai and 1100Kms from Delhi.
2.) STRATEGIC NUCLEAR DEPLOYMENT OF PAKISTAN (HIGH-YIELD WEAPONS)
- KORI UNDERGROUND NUCLEAR FACILITY 27 40 45 N x 66 56 23 E
- Mountain excavated Nuclear Base(possibly with the help of Chinese Tunneling Technology) with three tunnel entrances.
- Deployment of Medium Range Missiles
- Status- Under Construction
- Objective: To survive the first strike by the India and deliver counter-strikes on behalf of Pakistan
- Located beyond the range of Indian BrahMos missiles.
3.) PAKISTAN NUCLEAR WARHEAD STORAGE FACILITIES
1.
GADWAL URANIUM STORAGE FACILITY 33 49 10 N x 72 45 05 E
- Heavily camouflaged facility with six bunkers with four layers of security fencing.
- Location next to Gadwal Uranium Enrichment Facility
- Facility is guarded by a DSG battalion
- Second fence is guarded by ten concrete guard posts.
- Six camouflaged bunkers storing either weaponized warheads or weapons grade enriched Uranium.
2.
PETARO NUCLEAR WARHEAD STORAGE FACILITY 25 32 55 N x 68 20 03 E
- Highly sophisticated Warhead Storage Facility with modern support systems like MW Communication, Satellite/Missile tracking, Launch pads and infrastructure for a Brigade strength of troops including family accommodations.
- Hardened Underground Bay with garages and heavy duty fork lifts concealing AC vents. The facility can store 50 to 2400 warheads depending on the method of storage.
- Construction: Below the hardened concrete structure are four bays of 30x10m and four bays of 20x10m conected by 200x10m passage.
- The compound also encloses a long range rifle firing range, Satellite/Missile tracking facility, Helipad and independent TELs showing readiness for deployment.
- Dependent on Hyderabad Airbase for air cover.
3.
KHUZDAR WARHEAD STORAGE FACILITY 27 43 20 N x 66 37 27 E
- Sophisticated underground warhead storage facility very similar to the one in Petaro in design.
- Apart from Hardened Underground Facility, it has MW Communications, Launch Pads and infrastructure for regiment strength of troops. It has TELs near the garages and in-campus 300m firing range and obstacle course same as Petaro facility.
- Missile tracking system is not observed here.
- Construction: Under the hardened structure are two Y shaped storages with three bays each of 50x10m and 25x10m each. Six bays are interconnected with 200x10m passage.
- It can store 46 to 2640 warheads (depending on the method of storage)
So, if you carefully notice, the entire Eastern border of Pakistan with India is well within the range of the two forward Tactical Nuclear Bases of Gujranwala and Pano Aqil(given the range of Ghaznavi being 400Kms). So in case Indian Army Strike Corps attack Pakistan, it will wait till they enter Pakistani territory and then launch Tactical Nuclear Weapons from either
Gujranwala or Pano Aqil hoping that the world will convince India not to retaliate.
If however, India does retaliate with Nuclear attacks, the facilities at Petaro, Khuzdar and Mashroor will be used to launch further attacks. If for some reason, India manages to destroy these facilities before they attack, then Pakistan will use it’s mountain excavated KORI Nuclear Facility to launch long range ballistic missiles at Indian cities.
If the Indian Navy Aircraft carrier blockades Karachi, then PAF Aircrafts from Mashroor Airbase equipped with Ra’ad missiles will be used to launch tactical nuclear missiles at the Indian Navy fleet.
CONCLUSION: Pakistan has well defended it’s territory using tactical nuclear weapons and it has ensured that the price for Indian Forces to retaliate to the terrorists exported by Pakistan is so high that Indian Army would never launch a full scale attack on Pakistan. Any unthoughtful action on behalf of the Indians would cause them heavy damages.
However, India has the capability to destroy all these facilities except the one at KORI at present as the KORI facility is out of range of the BrahMos missiles and is also located in the core of the mountains. If India can manage to sabotage all these facilities somehow before launching an all out war, Pakistan will be defenseless and could be easily defeated in less than 72 hours.
This is because Pakistan has spent billions of dollars on the construction of these facilities and warheads and missiles. So much so, that it has left the country bankrupt without much to spend even on it’s Armed Forces. As per intelligence sources Pakistan can sustain to fight an all out war with India only for 4 days after which it would face severe ammunition, fuel and supply shortages.
THE GAME IS SOMEHOW STILL IN INDIA’S COURT.
https://www.quora.com/Where-are-pakistani-nuclear-weapons-stored/answers/35652006