The only way an Indian naval blockade of Malacca can be put up with a high degree of success is if the QUAD and the rest of China's sea neighbors (no South-Korea included for obvious reasons), plus the US all get on board during a war against China. Otherwise I don't see such a blockade happening or being successful. The chance of such a broad anti-China alliance coming together in this age is easier said than done. The recent Harris Vietnam visit is a testimony to that.
India doesn't have the military (like
@Sardaukar20 pointed out) nor the political clout to put up a unilateral blockade. If India would try to instate such a blockade, the political fall-out would be so large that India would buckle under the pressure. Let alone a huge battle added on top of that which won't only take place on the sea but also on land and will definitely involve Pakistan too.
Precisely. The only way a naval blockade of Malacca Strait could work is with the USN and several allies getting involved. Which makes the task not an Indian one but American if it is the Americans who would put 90% of the effort and associated risks.
India itself has no strategic ability to pull something like this off on its own at all. It totally lacks tactical methods of enforcing any blockade. Empty words get thrown around a lot but I ask again, what will India use to perform this?
We know for a fact zero Indian weapons have the range to reach MS from Indian shores that can target Chinese ships or submarines. IAF cannot get involved because fact is zero IAF fighters have the range to reach MS with payload from Indian airbases. It would be PLAN (whatever small portion of it China feels is enough to take on IN) and the IN. If China wishes to use PLARF to assist, it could knock out Indian bases in the vicinity just in case for long enough and it could even take out Indian ships anywhere above the equator (and indeed even a bit below it) on the Indian Ocean.
India has no equivalent of MaRV guided DF-21 and DF-26 with WZ-7 or WZ-8 support which btw are out of reach of Indian missiles ... ASAT missiles are unlikely to be used for drones which comfortably outnumber ASAT missiles in India.
What is left is just IN 2000 or so kilometers from Indian shores and PLAN 3000km away from Chinese shores. Tactical considerations of main modern forces.
IN:
1x Visakhapatnum (counting the only one in sea trial)
3x Kolkata
3x Shivalik
6x Talwar
10x non-AIP Kilos
5x Scorpenes (counting the two on sea trials)
1x Vikramaditya with 26x Mig-29K
PLAN:
3x Type 055
18x Type 052D
6x Type 052C
2x Type 052B
4x active Sov Class with one fully upgraded
31x Type 054A
2x Type 054
12x Kilos
17x AIP Yuan class
6x Type 093
1x Type 075
1x CV-16 with 26x J-15
1x CV-17 with 26x J-15
Weapons from Indian side are mostly imported or relying or imported material. Main armaments for anti-shipping is Brahmos on Indian side and Klub missiles to a much small degree than China's YJ-18 equivalent. Main Chinese anti-shipping armament is YJ-12 and YJ-18 in far greater numbers given above loadout.
Chinese side also using YJ-62, YJ-83, KD-88, YJ-82, YJ-91 for anti-shipping and anti-radiation.
All of these against under 600 medium and intermediate range air defence missiles for India in total and about 136 Brahmos or 112 Brahmos and 24 Klubs from surface platforms not counting carrier since Mig-29K cannot fire brahmos and so there is not a single brahmos missile onboard the Vikramaditya.
Subsurface it is PLAN's 10 improved Kilos + 2 Project 877 Kilos against IN's 10 old project 877 Kilos. That's China again with tactical advantage in hardware. No matter how it goes, 17 AIP capable SSK Yuan and 6 SSN Type 93s are far superior to 5 SSK Scorpenes which the Indians only recently developed AIP for and are still in the process of testing and installing compared to China's 10 or so years of having AIP.
I can't be bothered working out the combinations of how the PLAN can load out their armament but the VLS and launchers outnumber the Indians at least 10 to 1 for similar types of weapons (and that's giving India a GREAT dismissal here)
For air defence Barak-1 and Shtil are no longer capable missiles. PLAN's HHQ-16 is a much improved Shtil in many ways. India has no equivalent of Type 1130 or even Type 730. No equivalent of HHQ-10. No equivalent of HHQ-9 which is nearly twice the speed of Barak-8 and about twice the range or altitude reach. Barak-8 has close to no hope of intercepting high altitude flying fighters and honestly is not designed to counter fighters at all but intercept missiles closing in to the ships. That's fine and it's a great air defence missile against cruise missiles and anti-ship missiles etc but they have 96 max of it.
Sensors are no match. India has 3 Israeli AESAs in the form of the ELM-2248 which I'm sure are equivalent to units like Sampson etc. China has 3 sets of Type 346B on 055s, 18 sets of Type 346A on 052D and one set on Type 002, 6 sets of Type 346 on 052C.
346 alone is about similar power to ELM 346A takes it up a notch and 346B is in a different league with multiple bands and many times more powerful. Type 055 produces at least 142 megawatts of power for propulsion, systems, sensors, electronic warfare and weapons. Kolkata produces 67 megawatts of power. Type 052D produces 66 megawatts. Showing how far ahead the 055 is.
The remaining sensors Indian ones use Russian types which China has domesticated, improved, and in some cases replaced with more modern Chinese ones. EW is unknown but Type 055 is sort of a dedicated EW surface combatant. India has no obvious or expected EW capability on any surface combatants based on equipment used.
China can't bring any special mission Y aircraft this far and the carrier AEWC is for 003. India has none anyway of those types of aircrafts that can be brought this far either. However PLAN has J-15D in trials as a dedicated EW/EA fighter. I don't think 26 Mig-29K can do much at all against 52 J-15. The remaining J-15s would wreak havoc on IN surface combatants with YJ-91 and even rockets once the Migs are gone.