mumbai the special investigation team sit probing iitbombay student darshan solankis suicide in february are yet to retrieve data from his mobile phone to get leads on one sam rajputdarshans father ramesh had written to police about rajput who was his sons facebook friend darshans sister had found chats on his social media account in which an account holder sam rajput posed a question that revealed his caste according to the sister darshan later said in the chat that now even sam will not like him as he knows his castepolice also enquired with iitb about rajput but it said there was no student by this name we suspect sam rajput could be a nickname we are waiting for experts to retrieve the chats from darshans phone to get some leads in the caste discrimination angle said a police officer adding that experts have managed to gain access to darshans laptop but didnt find anything helpfuldarshan a firstyear chemical engineering student jumped off the seventh floor of his hostel building on february 12 a day after his semester exams ended three weeks later the sit found a oneline note from his room saying arman has killed me police then arrested khatri darshans classmate under charges of abetment to suicide and the scst act the sit is also investigating how the note was not found earlier by powai police which had first received the case the sit is checking whether it was a mala fide mistake or negligence after sit gives its opinion we will see what appropriate action can be taken said a senior ips officer