Mumbai, June 19 : In a new twist in the probe into actor Sushant Singh Rajput's suicide the Mumbai Police sought details of contracts from Yashraj Films for at least two movies he had signed with them, official sources said here on Friday. A letter to the effect was sent to the film company on Thursday, as part of the probe into the theory of professional rivalry as one of the probable causes for Rajput's suicide. The police are also probing several other production houses for similar grounds, besides talking to his friends, professional acquaintances, colleagues, staffers and others linked with the 34-year old actor, who died on June 14. The latest developments come in the wake of Home Minister Anil Deshmukh's statement on Monday that the police would probe all angles, including allegations of professional rivalries. In the past five days since Rajput was found hanging at his Bandra home on Sunday, the police have already questioned around a dozen people, including his friends like Rhea Chakravorty and Mahesh Shetty, and casting director Mukesh Chhabra. Bollywood circles claim that the popular and upcoming actor may have lapsed into depression after several of his film contracts allegedly got cancelled or he was abruptly dropped from these films. /IANS