Court on Wednesday approved the use of coercive methods, if required, to ensure the presence of Congress leader ND Tiwari on its premises to take his blood sample for a DNA test to decide on the petition of Rohit Shekhar, who claims he is the biological son of the octogenarian leader. Justice Reva Khetrapal dismissed Mr. Tiwari's plea seeking time on the ground that a petition had been filed in the Supreme Court against the High Court's ultimatum to him รข€" whether he wants to give a blood sample voluntarily or wants the court to order use of force for that. The judge said the pendency of the petition in the apex court would not come in the way of the High Court order as a Single Bench and a Division Bench of this court and finally the highest court of the land had directed him to give a blood sample. Justice Khetrapal asked the Joint Registrar to hear the matter on May 21 to decide the date and manner in which the blood sample was to be taken. The Joint Registrar was asked ! to take the assistance of the police to ensure the presence of Mr. Tiwari within one week of receipt of test kits from the Hyderabad-based Centre for DNA Fingerprinting and Diagnostics.