eChallan App is very useful for Tax Collecting Offices/Agencies under Government of Himachal Pradesh. It helps the Tax Revenue Collecting Officer to verify and authenticate amount deposited by the tax payer/citizen. eChallan can be verified by entering/scanning "HIMGRN" no or by entering "Department reference number". This app also help in maintaining history of all the viewed eChallans. The detail of these eChallan is available offline for later use through "Challan History" menu. Tax payer c