Gulmi District, a part of Lumbini Province, is one of the seventy-seven districts of Nepal. The district, with Tamghas as its headquarters, cov…Gulmi District, a part of Lumbini Province, is one of the seventy-seven districts of Nepal. The district, with Tamghas as its headquarters, covers an area of 1,149 km², had a population of 296,654 in 2001, 280,160 in 2011 and 268,597 in 2016.