Chandigarh, Jan. 30 -- Haryana's Energy, Transport and Labour Minister Anil Vij today reacted on the case filed against former Delhi CM Arvind Kejriwal and said if a case has been registered, there will be an investigation. "He (Kejriwal) should tell who mixed poison in the water," Vij said, adding that the Haryana's Chief Minister has proved him wrong by drinking Yamuna's water. Vij said today that "Arvind Kejriwal has tried to create terror among the people of Delhi, Kejriwal will have to answer for this". A case of cash and liquor being recovered from a Punjab Govt. vehicle has come to light in Delhi. On this, Vij took a jibe and said, "If the vehicle has come from Punjab, then one can guess who is sending the money. Whose governmen...