He said guards haven't been given shoot-on-sight orders but are allowed to fire in self-defense.

WSJ: Armed Guards, Drones to Protect India's Rhinos

Guards have not been given shoot-on-sight orders, but are allowed to fire in self-defense, he added.

WSJ: Armed Guards, Drones to Protect India's Rhinos

The Smarter Checkout solution also allows the customers to use their mobile devices to process orders, redeem digital coupons, access loyalty points, and pay for purchases at IBM self-service pay counters.

FORBES: IBM Scores In Retail With Smarter Checkout