Himachal Pradesh Chief Minister Virbhadra Singh was today summoned as accused by a special court in Delhi in alleged disproportionate assets case. <br/><br/>The court took cognizance of the CBI charge sheet against him for allegedly amassing disproportionate assets worth around 10 crore rupees.<br/><br/>Virbhadra Singh's wife Pratibha Singh was also summoned as accused. They have been directed to appear on May 22 before the court of Special Judge Virender Kumar Goyal.<br/>