SEBI Chairman Ajay Tyagi on Thursday said the markets regulator will take corrective measures following the leak of a list of stocks ahead of their being placed under Additional Surveillance Measures (ASM).

On June 6, SEBI had ordered a probe following a BusinessLine report that operators in Mumbai and Gujarat may have had access to the ASM list ahead of its official release on May 31, and that they used the information to profit from it by short-selling the stocks on the list.

“We have taken the leak of THE ASM list very seriously and have set up an internal probe. (We) will take corrective measures. The exchanges, too, have set up their own inquiry. Culprits will be taken to task,” Tyagi told reporters on Thursday.

It is likely that SEBI will minimise the interval between the issue and publication of its surveillance measures. Also, SEBI may include the exact time of the preparation of the surveillance circular by its internal staff and the time taken for its publication, in the circular itself, a source told BusinessLine . Further, a strict vigil may be kept on those involved in preparing the list and for uploading it on websites of regulator and exchanges.