To obtain a 100 Rs stamp paper online in India, you can use the e-stamping services provided by various state governments. Start by visiting the official e-stamping website of your state, such. Register on the portal if you are a new user, or log in with your existing credentials. Navigate to the e-stamping section and choose to purchase a new e-stamp paper. Fill in the necessary details, including the purpose of the stamp paper, the denomination (100 Rs), and the parties' names. Proceed to pay using credit/debit cards, net banking, or UPI. Once the payment is confirmed, download the e-stamp paper from the portal and print it on a standard A4 paper.