India:
CTEP data: Data from our survey in Bihar, Jharkhand and UP.
Nepal:
Nepal Longitudinal Sample Survey (NLSS) has three waves: 1995-96, 2004-05 and 2010-11. It also has a panel component.
Latin America:
One place to start is SEDLAC which has country level data with synchronised variables.
Bhutan:
Bhutan Living Standards Survey (BLSS). It has three rounds of data.