Before 1983 there were only three licenced car makers in India. These were :-
1) Hindustan Motors making Ambassdor cars and Trekker jeeps
2) Premier Motors making Padmini ( Fiat 1100) cars
3) Standard Motors making Standard Gazel cars.
Then came the state owned Maruti car ( Old design ) and changed everything for the coming times. It was a brain child of Late Sanjay Gandhi ( second son of Indira Gandhi ) who wanted India to have a latest car for the masses. For this he went shopping everywhere like Volksvagon, Fiat, Diahtsu and Suzuki. All these car makers except for Suzuki were reluctant to share their 2nd generation car technology and ready to dispense away their older gen cars only.
Thus Suzuki came helping and there came the car of masses for just Rs. 49,000/- per car but deriving a hot premium of Rs. 50,000/- extra for each delivery. In those days a Fiat Padmini 1100 car was priced at 85,000/- and still the Public went for a Maruti 800 due to its latest design, technology and high fuel efficiency. It was a craze.
Initially the old model was produced as CKD units, meanwhile the Company created its infrastructure to produce the present day Maruti 800 ( Mehran type ). in June/July 1986 the present day Maruti 800 was launched with an over 65% indignisation levels. Technical collaborations were entered in every department of the car like for Electicals Denso, Shockers/structs with Showa, Glass with Asahi glass. Also almunium Radiators, steering systems, dashboards/bumpers, instrument panels, suspension parts etc. In each field the respective component supplier in Japan collaborated with Indian companies giving them an edge to produce all the Maruti needs. By 1995 Maruti was a 100 % Indian product.
Then came other models like Gypsy, Zen, 1000 later called 1300 Esteem and then an array of new models like Baleno, Versa, Wagon R. Grand Vitara and now Swift.
I do remember when Suzuki was so much adament to not to transfer the gear box technology as it felt at that time ( somewhere in 1994-95 ) it would drift the comany out of its technological upperhand. But it was proved wrong and later in the coming times Maruti's Gurgaon base came to be a Research & Development base for Suzuki for small cars. A lot of research was carried out in India about developing the Swift car and also the redesigning of Zen car was exclusively done at Gurgaon only with a cost of Rs. 620 crores which includes designing, tooling, and actual production.