Washington, April 14 (Inditop.com) Prime Minister Manmohan Singh left Wednesday for Brasilia to attend the BRIC and IBSA summits in the Brazilian capital after taking part in the 47-nation nuclear security summit.

Key development issues will be on the agenda at the India-Brazil-South Africa (IBSA) Summit Thursday and the Brazil-Russia-India-China (BRIC) Summit Friday hosted by Brazilian President Luiz Inacio Lula da Silva.