This discussion clarifies the correct TDS rates to apply when booking March bills that were received in April but dated in April. The consensus is that since the provisional entries were made in March, the TDS should be deducted at the rates applicable for the financial year ending March 31, 2021. This means using the reduced rates of 7.5% for Section 194J and 1.5% for Section 194C.
13 April 2021
Since provisional entries are made in March itself, you need to deduct tax at source at applicable rates for March (i.e. at reduced rates for FY20-21)