Section 7(2)(c) in Bihar Excise (Mahua Flowers) Rules, 2006
(c)When Mahua flowers are required fa bona fide scientific, agricultural, educational or medicinal purpose-rupees one hundred only. When the total quantity allowed for sale during a year exceeds one hundred quintals per year, and when such quantity is to be stored in a single place of storage in a village or town-rupees five hundred only and when such quantity is to be stored in more than one place of storage in a town-rupees five hundred only for each additional place of storage.