(Inspired by a previous post by kudos.)
This is probably a question that few care to ask, but I thought I’d slop together some information for anyone who was interested in knowing more about this holiday. I usually refer to it as Songkran/Thingyan, but this term (as I understand) is most often used to just denote the first day of New Year celebrations. Temple visits and blessings are typical, but I’ve never really thought of this holiday as Buddhist.
I have been greeting all my Thai, Lao, Burmese, Mon, Khmer and Sri Lankan friends with Happy New Year. But it so happens that one of my best friends is Bengali (and Muslim), and he was quick to point out that this is also the Bengali New Year, known as Pohela Boishakh, celebrated by both Indian and Bangladeshi Bengalis. Not only that, he continued, it’s also the South Indian, East Indian (Assamese, Manipuri, Oriya, Bengali), Nepalese and Punjabi New Year. While the Southeast Asian areas that celebrate this holiday are predominantly Buddhist, the other areas in South Asia are predominantly non-Buddhist. They are mostly Hindu, Muslim or Sikh. So from that more regional perspective, this day isn’t a Buddhist holiday at all.