They had haseen sapne about this as a force from the 60s itself, in ~1966 you had Bri'ish Leander-class warships being built in MDL
They were also doing mods on imported ships to fire missiles they weren't intended to.
They were building small boats like this guy is saying to throw shade on the dalals screeching about ((( cancel Tejas mk1a and mk2, phool phunding for AMCA saaar )))
View: https://x.com/VinodDX9/status/1873745888310649198
They also developed the first indigenous frigate design of Godavari class by using the basic hull design of Leander class, expanding it as per their requirements and adding other features they found necessary in their other Soviet ships, started building Godavari class frigates in 1978.
You can read this excellent thread on Team BHP( this is an Indian car forum ) about the chronology of the Atmanirbhar Bharat efforts of the Indian Navy even before Modiji was a thing, It is also written for car-walas so you don't need to have a lot of defense or naval terms knowledge to understand
Indian Navy - A Shipbuilders Navy: INS Nilgiri, INS Godavari & INS Brahmaputra
www.team-bhp.com
Keep in mind these guys were and are the last to see any "action", they didn't need to go full "Builder's Navy" so they also could do ((( Impoorts ))) like the other two were going but still they felt that "Builder's Navy" was the best to make the max out of the chindi budgets they got to maintain a lead over the main Green adversary of the country, they were and are doing their duty.
They have their own design bureau for warships and submarines so there is absolutely no ((( customer-vendor ))) drama of giving Marvel Comics specifications, and once poor Sarkari Scientists match those specs, change the specs again and complain about weight wagera, complain about """"inefficient"""" DPSU """delaying"""" etc
Here is an article from 2012 where ((( Ajai Shukla ))) is complaining about Kolkata class destroyers "rusting in dock" because Navy wanted fancy weapon systems
Notice how it is Navy being blamed, and not MDL for being an """"inefficient DPSU causing delays"""" because MDL is only the builder, it is Navy that had the full project responsibility including timelines.
Today they have a head-and-shoulders lead over their SeaSwine counterparts in Karachi and hopefully should be able to match whatever PLAAN sends into the IOR in the future
On the other side you have Imported Army struggling with SPH of both tracked and wheeled sorts when their Papa John's franchisee counterparts across the border have those in plenty, Imported Air Force crying "fighter squadrons declining" every month and having a paucity of AWACS, Refuellers and all.
Perhaps if the aforementioned took responsibility for their fore preparedness like the Navy, they wouldn't be losing in the numbers game at the bare minimum rather than chasing imports at all costs