IPL middleman Vindoo Dara Singh and BCCI Chief N Srinivasan's son-in-law Gurunath Meiyappan will be produced in court as their custody ends today (May 31). Sources have said that the police is likely to seek an extension of their custody. The police are keen to establish the link between the two and the Chennai based hotelier Vikram Agarwal who is still to be questioned.