An elderly man died while waiting in a queue to change withdrawn currency notes at a bank here on Tuesday.Lakshminarayana, 75, collapsed and died while waiting in a long queue for over two hours at Andhra Bank branch in Marredpally in Secunderabad, the twin city of Hyderabad.He was rushed to a hospital, where doctors declared him dead. According to doctors, the man died of cardiac arrest.A resident of Railway Colony in Secunderabad, the man had gone to the back to deposit Rs.1.7 lakh in scrapped currency notes of Rs 1,000 and Rs 500 in his account.According to eye witnesses, there was huge rush at the bank and Lakshminarayana had to wait for long.His family members said there was no separate queue for senior citizens which forced him to stand in the common queue.