There is not much difference between religion and sect. Both are made for human life. There are rules in both. There is some difference between religion and sect, as religion is common to all mankind. Religion never discriminates, untouchability. Religion always shows the right path to man. Religion teaches human how to lead life. Religion never confuses human beings, whereas sect looks just like religion. The sect is not meant for all mankind. Those who follow this sect, they also follow the rules of the sect. The rules of a sect are limited to those who follow them. There are definitely some rules of religion in a sect, but a sect is not a religion.You must be thinking that sect is not a religion, so how did it become a sect, how did it develop. How did they expand? There are two reasons for the formation of sect. The first reason is that circumstances change with time. When the circumstances of man changed, then it became difficult for man to follow the rules of religion, difficulties started to arise, then some religious teacher or some scholar simplified the rules of that religion.