Section - 273B (of Income Tax Act, 1961), Penalty not to be imposed in certain cases

Notwithstanding anything contained in the provisions of clause (b) of sub-section (1) of section 271 (of Income Tax Act, 1961), section 271A (of Income Tax Act, 1961), section 271AA (of Income Tax Act, 1961), section 271B (of Income Tax Act, 1961), section 271BA (of Income Tax Act, 1961), section 271BB (of Income Tax Act, 1961), section 271C (of Income Tax Act, 1961), section 271CA (of Income Tax Act, 1961), section 271D (of Income Tax Act, 1961), section 271E (of Income Tax Act, 1961), section 271F (of Income Tax Act, 1961), section 271FA (of Income Tax Act, 1961), section 271FAB (of Income Tax Act, 1961), section 271FB (of Income Tax Act, 1961), section 271G (of Income Tax Act, 1961), section 271GA (of Income Tax Act, 1961), section 271GB (of Income Tax Act, 1961), section 271H (of Income Tax Act, 1961), section 271-I (of Income Tax Act, 1961), section 271J (of Income Tax Act, 1961), clause (c) or clause (d) of sub-section (1) or sub-section (2) of section 272A (of Income Tax Act, 1961), sub-section (1) of section 272AA (of Income Tax Act, 1961) or section 272B (of Income Tax Act, 1961) or sub-section (1) or sub-section (1A) of section 272BB (of Income Tax Act, 1961) or sub-section (1) of section 272BBB (of Income Tax Act, 1961) or clause (b) of sub-section (1) or clause (b) or clause (c) of sub-section (2) of section 273 (of Income Tax Act, 1961), no penalty shall be imposable on the person or the assessee, as the case may be, for any failure referred to in the said provisions if he proves that there was reasonable cause for the said failure.