aupacharic patra kya hota hai?

yeh anavaopcharic patra se alag kaisa hota hai?

aupcharic patra is formal letter wich is written to principal, municipal head, editor, etc.

eg. leave application, sick leave, complaint, suggestion, etc.

anaupcharic patra is informal letter wich is written to ur parents, friends and relatives.

eg. wishing on auspicious days such as diwali, eid, holi, best wishes for exams, event news-trips to places, etc.

all d best!!!