The decision to quiz the duo was taken after examination of another former SEBI chief C B Bhave was done earlier this month in Bangalore during which the agency sleuths were told that public interest was involved in granting the licence to MCX-SX to trade in currency derivatives.
Bhave, a 1975 batch IAS officer from Maharashtra, also made it clear that there was no undue pecuniary benefit to Jignesh Shah entities as a result of this decision.
During the probe, the CBI claimed that Damodaran had cleared the file of MCX-SX despite knowing that the Income Tax department had carried out searches on Shah and under investigation of the tax department.
The former SEBI chief has, however, claimed that the report about Income Tax searches reached him later.
MCX-SX was set up by FTIL and its commodity exchange arm MCX and began functioning as a full-fledged stock exchange last year after a prolonged battle with SEBI.
The approval for full-fledged stock exchange came during the tenure of Sinha, who took charge of the SEBI on February 2011. He recently got an extension of two years in February this year.
Bhave was examined by a team of CBI officers two months after the agency registered a PE against him, another former member K M Abraham and FTIL and MCX-SX, among others.
Bhave had denied any quid pro quo as alleged by CBI for grant of permission to the bourse and said "there was not a single question to me on quid pro quo. They wanted to understand the public interest involved in granting the licence to MCX-SX to trade in currency derivatives."
He was SEBI Chairman in February 2008 and his three-year term ended in February 2011. Abraham's term as a whole-time member of SEBI also ended in 2011.