NPS Withdrawal

M Iffi (44 Points)

26 April 2021  
Presently withdrawals under NPS at the time of retirement are exempted upto 40% of total corpus. It means at least 20 % of withdrawal is taxed.
Question: Withdrawal may include employees portion as well which has been taxed during his/her service (sec 80 max limit 150000).
Doesn't it mean double taxation.

Please help me to get off the confusion with an example

Thankyou