Rustam Sheikh does not want to come to Dhaka. The smoke, the dust, the noise of the cars make him dizzy. The high-rises and the fast-paced life of the metropolitan hold no allure for him. "I had to come for my grandson, Shariful. He wants to go to Qatar. He came here for his medicals," Rustam says as the sun's rays beat down on him. Rustam, 70, himself has gone