273B: “Notwithstanding anything contained in the provisions of clause (b) of sub-section (1) of section 271, section 271A, section 271AA, section 271B, section 271BA, section 271BB, section 271C, section 271CA, section 271D, section 271E, section 271F, section 271FA, section 271FB, section 271G, clause (c) or clause (d) of sub-section (1) or sub-section (2) of section 272A