The Ahmedabad Crime Branch has detained 61 suspected illegal immigrants, predominantly from Bangladesh, during a city-wide crackdown ahead of Diwali to strengthen security during the festive season, police said on Monday. Ahmedabad, Nov 2 (PTI) The Ahmedabad Crime Branch has detained 61 illegal immigrants, predominantly from Bangladesh, during a city-wide crackdown ahead of the Diwali festivities aimed at.