Williamson will lead New Zealand's bid for a first Twenty20 World Cup title when they begin their campaign against Pakistan on October 26.
Shastri's contract as India's head coach is set to end after the T20 World Cup and the 59-year-old has already confirmed that he won't be seeking an extension.
Manish Pandey has stepped in to lead Sunrisers Hyderabad as Kane Williamson has a minor injury.
While SRH captain Williamson called Malik a "special" talent, RCB skipper Kohli said that India need to nurture him to "maximise the potential of our fast bowling stocks".
Bhuvneshwar Kumar held his nerve and gave the Kane Williamson-led side a narrow win.
Mohammed Siraj was the previous fastest Indian bowler in IPL with a delivery clocking 145.97 kph.
Shubman Gill top-scored 57 from 51 balls as Kolkata chased down Hyderabad's modest total of 115/8.
With their fourth win in as many games since the tournament's resumption, CSK showed not making the play-offs last season was just a blip in their successful IPL history.
Hyderabad skipper Kane Williamson scored an unbeaten 51 and Jason Roy scored 60 to chase down a target of 165 runs.
Leggie Ravi Bishnoi picked up 3/24, while pacer Mohammed Shami claimed 2/14.