New Delhi, June 3 -- Senior advocate and Rajya Sabha MP Kapil Sibal on Wednesday sharply criticised the Centre over the ongoing controversy surrounding the Central Board of Secondary Education's (CBSE) On-Screen Marking (OSM) system, questioning accountability after top officials were transferred and an inquiry was ordered.

Sibal's X post came after the Centre transferred CBSE Chairman Rahul Singh and Secretary Himanshu Gupta on Tuesday. In his remarks, he said "blame the small fish, protect the big fish," a veiled attack suggesting accountability is being fixed on CBSE officials while higher authorities, including the Centre and Education Minister Dharmendra Pradhan, are being shielded.

He also alleged a "corrupt contract will not be i...