The Supreme Court asked the Central Bureau of Investigation (CBI) Friday if it proposed to examine former finance minister P. Chidambaram on the clearance given to the Aircel-Maxis deal over which charges had been filed some time ago.BJP leader Subramaniam Swamy told the court that while charges on deal had already been been filed, there seemed to be no progress on CBI's part to seek clarifications on the nod given by the Foreign Investment Promotion Board (FIPB) at Chidambaram's behest.The apex court bench of Chief Justice H.L. Dattu and Justice S.A. Bobde asked senior counsel K.K. Venugopal, appearing for the CBI, to apprise the court on this count at the next hearing, fixed for Oct 16.