Ajay Devgun too deserves a mention.
VFX technique has changed a lot and it existed long ago. The first credit should go to movie Maya Bazaar which was made in Tamil and Telugu in 1957. The VFX work of the film was done by EFX under the supervision of Prasad. It was a fantasy mythological drama where main characters were of Lord Krishna and Gatotkacha where some portions were created but not under the name of VFX. It was also the first Telugu movie to be digitally remastered and colourised.
One more film with the same name Maya Bazaar was released in 2006 where the main CG work was animating Pushpak Vimana.The work involved 3D tracking and it was the legendary singer S. P. Balasubramanyam who was shot against blue matte at that time and later composited with the model of Pushpak Vimana.
The technology developed miles if we compare with Ra-One VFX work.
In between there has been developments in technology and glimpses can be seen in Haatimtai, Paatal Bhairavi, mythological movies, Mr. India (which was done by Peter Pereria ) and mainly called special effects.
Shankar used a lot of VFX in films like Jeans and his recent films. But you will be surprised to know Ajay Devgun has mentioned that first Bollywood movie to properly handle VFX was for the title song Pyaar To Hona Hi Tha shot on Remo Fernandes and Jasbinder Narula.
According to Ajay, he himself has shot the song and executed on CG. This was the first VFX ever done against a green screen in India and holds a mention in the Limca Book of Records trophy for the same.
So it's been a long journey having different versions and techniques but you have to give credit to Prasad, Maya Bazaar, (both films) Shankar and some creative minds who enhanced and improvised the technique to this magnum level.
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