Immunity from prosecution may be granted by the tax commissioner where the assessee cooperates and makes full, true income disclosure. The Principal Commissioner or Commissioner may grant immunity from prosecution when, after abatement of settlement proceedings, the assessee applies before prosecution and, having cooperated with the income-tax authority, makes a full and true disclosure of income; immunity granted for pre-1 June 2007 settlement applications may extend to offences under the IPC or other Central Acts, but such immunity is conditional and may be withdrawn for non-compliance, concealment of material particulars, or false evidence, after which the Act applies as if no immunity had been granted.