Section 40 in THE BHARATIYA NYAYA SANHITA, 2023 – BNS

Commencement
and
continuance of
right of private
defence of
body.

40. The right of private defence of the body commences as soon as a reasonable
    apprehension of danger to the body arises from an attempt or threat to commit the offence
    though the offence may not have been committed; and it continues as long as such
    apprehension of danger to the body continues.