It's been reported that special court in Delhi has convicted former coal secretary HC Gupta and others in coal scam case involving KSSPL. According to sources the court also has convicted Senior Joint Secretary and then director in coal ministry KC Samaria in connection with the coal scam case. Both were found guilty by court of cheating and corruption for their role in allocation of Rudrapur coal block to KSSPL in Madhya Pradesh. Ahluwalia has been found guilty of criminal conspiracy by the court. On the other hand chartered accountant Amit Goel was acquitted from all charges. The court will announce quantum of sentence on May 22nd, say the sources.