not familiar with the half saree ? the woman in the centre wears it. half saree/sari is mostly worn by girls once they reached 14-15 years. and most common in the southern part of the country..
The half saree , a atraditional way of dressing , always preluded the saree, is almost on its ways to extinction. the salwar kurta takes its place and is considered more forward looking, even in the rural areas, where the tatters of traditional garments still had its last looks until recently