BENGALURU: Karnataka will promote industrial suburbs around Bengaluru for potential investments from the Indian diaspora during the three-day Pravasi Bharatya Divas (PBD), beginning Saturday. Prime Minister Narendra Modi will open the event on Sunday which will focus on the theme, "Redefining Engagem,ent with the Indian Diaspora." “Bengaluru is overloaded with investments, and we want to encourage investments in industrial suburbs…