 The cult of Manasa is most widespread in Bengal , where she is ritually worshipped in temples . The goddess is widely worshipped in the rainy season , when the snakes are most active . Manasa is also a very important fertility deity , especially among the lower castes , and her blessings are invoked during marriage or for childlessness . She is usually worshipped and mentioned along with Neto , who is called Neta , <unk> , <unk> , etc. in various parts of Bengal . 
