The offence under Section 138 of the Negotiable Instruments Act is completed when, after receiving a notice of dishonour, the accused fails to make payment within 15 days. The cause of action for a complaint arises precisely when this 15-day period expires after the notice is received. Key ingredients for this offence include cheque issuance, presentation, dishonour, service of a statutory notice, and the drawer's failure to pay within 15 days of receiving that notice.