The traders were returning to their neighbourhood after buying vegetables from the wholesale market in Manikganj’s Jaagir.
He will board a VVIP Biman Bangladesh flight to London at 10:30am, said the President's Press Secretary Joynal Abedin.
President Hamid will get his eyes checked at London's Moorfield Eye Hospital and do an overall health checkup at Bupa Cromwell Hospital.
The 74-year-old, suffering glaucoma for long, was in London earlier in April to treat his eyes.
The president is scheduled to return to Dhaka on Oct 29.