No need to make drastic changes . Only important thing is that how your selected players performs on THAT PARTICULAR day .
NO PLAYER CAN DIRECTLY MAKE IS DEBUT IN A IMPORTANT EVENT LIKE WC . He MUST have bit of experience ie at least 8-10 international matches before playing WC .
Playing & performing in IPL is different thing than playing for the country in world cup .
In WC you will have to perform under PRESSURE . Whereas in IPL , losing one or two games in middle does not matter much . So --- performance in IPL should not be the main criteria for WC team selection .
Drop Rahul Chahar and replace with Chahal. Drop hardik ( never should be in Indian team) and replace with Venkatesh iyer. Bring in in Avesh Khan, Harshal Patel, rituraj n dhawan. Drop suryakumar, bhubneswar, Ishan kishan