Delhi Chief Minister Arvind Kejriwal on Thursday suspected foul play in the theft at the deputy chief minister's media advisor's house as he said only official papers were stolen from the place."Robbery at deputy chief minister's media advisor's home. Burglars stole only official papers, left all valuables. Who's behind it," Kejriwal asked in a tweet on Thursday morning.Unidentified miscreants barged into Delhi Deputy Chief Minister Manish Sisodia's media advisor Arunoday Prakash's house in Sheikh Sarai area of south Delhi late Sunday night.They took away certain important documents which contained details of the meetings between Sisodia and Kejriwal over the last one year.They did not touch any other valuable items in the house, the complainant said.Sisodia too alleged foul play, saying valuable items including laptops, mobiles and music system were not stolen but certain important papers of the briefings were missing from Prakash's residence.