Amit Shah called Nitish Kumar a day before the Bihar Chief Minister dumped the BJP and was assured that he had "nothing to worry about", senior BJP leader Sushil Kumar Modi told NDTV on Wednesday, in the first admission by the party that it tried to save the alliance. "Two days back, Amit Shah called Nitish Kumar. Nitish said there's nothing to worry about. PM [Narendra] Modi also spoke to Nitish many times in the last 1.5 years, but he never complained," Sushil Kumar Modi said. Party sources had earlier denied that there had been any such overture.