Goods and Services Tax [GST] revenue  slumped to a three-month low in August 2020  and came in 12 per cent lower year-on-year (YoY), indicating slower recovery in economic activity. However, compensation cess collections rose for the first time in five months, and 6 per cent YoY, amid the tussle between the Centre and states.

Gross Domestic Product [GDP]  at constant (2011-12) prices  reports a contraction of 23.9 percent during Q1 of the current financial year,   compared to 5.2 percent growth recorded  in the corresponding quarter of 2019-20. In April-June period, it suffered a contraction for the first time since India began maintaining quarterly records in 1996.This steep fall is also against a growth of 3.1 per cent in Q4 [January - March] of FY 2019-20.
With this record of GDP growth during Q1, 2020-21 India became the fastest shrinking economy among the G-20 countries (Fig.1).

Reference