New Delhi: The gruesome murder of Rehana Begum, second wife of BSP MLA Haji Alim Chaudhary, could be the result of contract killing, Delhi Police officers investigating the crime say.

Delhi police is  likely to question the BSP MLA on his return from Haj in Mecca.  His two wives, his brothers and his children are being questioned.

Some family friends are also likely to be questioned. Nearly 20 persons have been asked by Delhi police to come for interrogation on Thursday.