140. Itshall not be a defence in a prosecution for an offence under section 138 that the drawer had no reason to believe when he issued the cheque that the cheque may be dishonoured on presentment for the reasons stated in that section.
Negotiable Instruments Act, 1881
Section 140: Defence which may not be allowed in any prosecution under section 138
Chapter XVII — Of Penalties in Case of Dishonour of Certain Cheques for Insufficiency of Funds in the Accounts
Source: official text of the Negotiable Instruments Act, 1881.