As per the usual schedule, employers issue Form 16 around mid-June, i.e before June 15. For FY 2023-24 (assessment year 2024-25), Form 16 should be issued by June 15, 2024.
TDS on salary, income tax refund: A salaried is required to choose tax regime twice - one for tax deducted on salary by employer and secondly while filing ITR.