This is the third extension granted by Sebi to PSUs. The initial deadline was to end on August 2014, which was later extended to August 2017. Last year, the deadline was extended by another year.
Regulatory sources say while Sebi is responsible for the implementation of the minimum public shareholding requirement, it is the government which has the powers to set deadlines.
The Centre has the powers under the Securities Contract Regulation Rules (SCRR) to provide relaxation to PSUs, a Sebi official said, adding that a new notification in this regard will be issued soon.
The extension in the deadline comes at a time when investor sentiment towards the PSU pack is weak, even as the benchmark indices are hovering close to their lifetime highs. The BSE PSU index, a gauge for the performance of 60 government-owned entities, is down 17 per cent so far this year. In comparison, the Sensex has rallied 11 per cent during the same period.