Advance tax

Penalty will be imposed if advance tax after due date
u/s 234C interest u/s 1% of month or part of month

When we make a payment of advanced tax for the year 2020-2021 assessment year will be 20-21 or 21-22

If advance tax is paid in respect of income for FY20-21, select AY 21-22 in the form while making payment. Ensure to select advance tax option too.

Ok thanks a lot

Sumit there are some rules pertaining to advance tax.
1. advance tax payable for a financial year is less than Rs. 10000 no advance tax is payable.
Such tax can be paid on self assessment before filing the return.
A person who has received order u/sec 210 (3) in form no.28 to pay an amount by way of advance tax should deposit such amount in installments as specified in the order.

Any time you can pay advance tax within Financial year from April to March. There will be interest under 234C for deferrment of advance tax .