At the Barbatta Primary school in Bihar's Saran district, there is a last minute rush to put toilets in place. When we visited, four workers were drilling and putting together toilets made from iron sheets with metalled commodes. On Independence Day, all schools across the country are supposed to have separate toilets for boys and girls - a promise made by Prime Minister Narendra Modi from the Red Fort last year. And so, the last month has been a scramble at most places in Bihar.