The four accused -- Sujit Nair, Ayush Bhat, Rajiv Dhariya and Amit Kaushal -- were acquitted after the sessions court found no substance in the case of the prosecution.The high court has posted the appeal for hearing on July 25.
According to prosecution, Adnan, belonging to an affluent family, had befriended the accused persons through a social networking site and accompanied them to a game parlour in suburban mall on August 18, 2007.
The four accused had allegedly hatched a conspiracy to kidnap Adnan and demand Rs 2 crore ransom from his family. Soon after receiving a call from them, Adnan's family informed the police after which his body was found a day later in Navi Mumbai.