As per the recent tweet of CNBC TV 18, the Sources says that the GST Council clears the proposal to allow small taxpayers (below Rs 5Cr Annual Turnover) to file their returns for Feb-June, 2020 with 9% interest beyond 30 June 2020 & at 18% Interest after 30 September 2020.
Source: https://twitter.com/TimsyJaipuria/status/1271352678308696068