Mion is a town in Kaimur and comes under the Bihar state. Mion has its own post office and all the mails and packages are delivered to this post office from where they are further distributed to the different addresses in Mion, Kaimur area. Pin code of Mion, Kaimur, Bihar is 821101. Since there are a number of homes in this area, it is highly significant to acquire the right pin code, so that the parcel is delivered to the exact address. At Pin Code of India, we will provide you the postal codes of all the towns, cities and states of India. Our customer support team works round-the-clock to serve you in the best possible manner.