In a recent development in the paternity case involving Congress leader ND Tiwari, Rohit Shekhar who claims to be the biological son of former Chief Minister ND Tiwari, and his mother Ujjawala Sharma today deposited their blood samples in the Delhi high court as per the Supreme Court's order. Shekhar had moved to the Delhi high court in 2008 by filing the paternity suit seeking to declare Tiwari as his father.