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.
392 IPC Punishment for robbery
393 IPC Attempt to commit robbery
394 IPC Voluntarily causing hurt in committing robbery
395 IPC Punishment for dacoity
397 IPC Robbery, or dacoity, with attempt to cause death or grievous hurt
398 IPC Attempt to commit robbery or dacoity when armed with deadly weapon