Pune: Innovative payment cards, artificial intelligence (AI)-powered robots and RFID-run laser tags were among the prominent technologies displayed at the 23rd edition of the Maha-Tech industrial expo being held on the Agricultural College ground in Shivajinagar.A Hinjewadi-based firm unveiled a prototype debit card featuring biometric authentication to prevent misuse if lost. The card verifies users through a thumb impression, addressing risks from tap-and-pay functions that remain active until blocked. The company also introduced a dynamic card verification value (CVV) that generates random numbers from 000 to 999 via an algorithm, enhancing protection against cybercrime. This CVV updates after each transaction and can function effectively for six to seven years, depending on usage frequency.“We completed the testing of the use of the technology on cards and are awaiting approvals from the National Payments Corporation of India (NPCI). Following this, we will advance talks with global payment service provider Visa and banks to introduce the technology to the public,” Dynanesh Rathod, a booth representative, said.A tool delivery robot was showcased for use on shop floors and in warehouses to move tools or materials across short distances. It maps its operating area and progressively learns to detect and avoid obstacles using accumulated data.“It has a load capacity of 150 kg and was introduced in the market in Nov. It can also be used in hotels, hospitals, supermarkets, or corporate offices,” Ganesh Chavan, an employee of a Pune-based company, said at the exhibition.The event also hosted radio frequency identification (RFID)-based laser machines, which eliminate the human error factor, providing high-precision marking for industrial use. It also has a use for non-industrial purposes, such as nameplate or smartphone engraving. These machines are also useful for part identification, sterilisation, traceability, and branding.The expo, which includes process industry equipment, electronics instrumentation, automation, engineering machinery, and machine tools, will conclude on Sunday (Feb 8). 
