311. If, at the time of committing robbery or dacoity, the offender uses any deadly weapon, or causes grievous hurt to any person, or attempts to cause death or grievous hurt to any person, the imprisonment with which such offender shall be punished shall not be less than seven years.
Bharatiya Nyaya Sanhita, 2023
Section 311: Robbery, or dacoity, with attempt to cause death or grievous hurt
Chapter XVII — Of Offences Against Property
Source: official text of the Bharatiya Nyaya Sanhita, 2023 (Ministry of Home Affairs).