 However, the pattern of marriage is always slowly changing and few people also prefer official registry marriages with little or no formal rituals.Apart from weddings, other important social functions include "annyaprasan" (first rice-feeding ceremony of Hindu babies), "upanayan" ("poitey" or sacred thread ceremony for Brahmins), birthday, marriage anniversary, "griha prabesh" (ceremony before residing in a new home), "shraddha" (funeral rites for the dead), "sunnat" (circumcision ritual of Muslim boys) etc.Unlike neighbouring Bangladesh which is predominantly Bengali Muslim, West Bengal is much more diverse in terms of religion and ethnicity.