The Delhi High Court on Friday dismissed former Congress leader Sajjan Kumar's plea for extension of time to surrender till January 30, saying it saw no ground in the plea. <br />''<br />''The court had sentenced him to life imprisonment on Monday, in a 1984 anti-Sikh riots case and directed him to surrender by 31st of this month. Sajjan Kumar then moved a plea seeking an extension. <br />''<br />''The case relates to the killing of five Sikhs in Raj Nagar part-I area in Palam Colony in South West Delhi on November 1-2, 1984, and burning down of a Gurudwara in Raj Nagar part II during that period.<br />''<br />''<br />''The riots had broken out after the assassination of the then Prime Minister Indira Gandhi on October 31, 1984 by her two Sikh bodyguards.<br />''<br />