272A, sub-section (1) of section 272AA, or sub-section (1) of section 272BB or sub-section (1A) of section 272BB or sub- section (1) of section 272BBB or clause (b) of sub-section (1) or clause (b) or clause (c) of sub-section (2) of section 273, no penalty shall be imposable on the person or the assessee