For TDS from salary, you will have to choose your tax regime now, says CBDT

CBDT issues Circular C1 of 2020 dated 13.04.2020 clarifying the process of exercising of option by a taxpayer with regard to deduction of tax at source if he/she opts for the concessional rates of tax as per section 115BAC of IT Act,1961

Employee to intimate employer of intention to opt for new concessional rates.Intimation so given will be applicable for the year &can't be modified.However,employee will continue to have the right to exercise such option or continue with earlier scheme at time of filing ITR.