If we look at the background of Operation Trident,launched by Indian Navy forces,we conclude the following lapses of Pakistani naval forces,these are as follows as far as I have concluded:
Background:
--On 4 December, the Indian Navy launched naval strike operation against Pakistan Naval Headquarters, Karachi.
--The task group for the operation consisted of three missile boats of vidyat class,which are:
> INS Nipat (K86),
>INS Nirghat (K89) and
>INS Veer (K82)
>INS Kiltan (P79) and INS Katchall (P81),
and a fleet tanker, INS Poshak.
The task group was led by the Commanding Officer of the 25th Squadron, Commander Babru Bhan Yadav.
The Plan and Lapses:
--The plan was to attack Karachi at night because most PAF aircraft did not possess night-time bombing capability.
--INS Nirghat fired the first Styx missile PNS Khaibar, which was on patrol,Khaibar mistook the missile to be an aircraft and engaged it with its Bofors anti-aircraft guns.
--The missile hit on the starboard side and exploded below the aft galley in the Electrician's mess deck at about 2245 hrs PST.
--The ship immediately lost propulsion, plunged into darkness and the No.1 Boiler room exploded, engulfing the ship in thick black smoke.
--Due to this,Khaibar sent out an emergency transmission to PNHQ which read:
"Enemy aircraft attacked in position 020 FF 20. No 1 Boiler hit. Ship stopped."
--In the panic of the attack, the transmission sent incorrect coordinates of the ship's position, due to which rescuing of survivors delayed later on,
--After that 2249 hrs, INS Nirghat fired a second missile, due to whichThe missile struck the No.2 Boiler room on the starboard side, PNS Khaibar destroyed.
--At 2300 hours, INS Nipat also launched 1 Styx missile each at the MV Venus Challenger which was carrying ammunition for Pakistan from the United States forces in Saigon. The ammunition on the Venus Challenger immediately exploded as the missile struck sinking her about 26 miles south of Karachi.
--While the other missile hit PNS Shah Jahan which was badly damaged and scrapped.
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Aeronaut honestly speaking,our navy was seriously not ready to resist the attack,I hope that PNS is working on updating it's weapon technology and strengthening it's performance day by day.