To open a savings account in a post office, you need to follow these steps:

1. Visit your nearest post office
2. Collect and fill out the account opening form
3. Provide proof of identity and address (e.g. PAN card, passport, driving license, etc.)
4. Provide a passport-sized photo
5. Submit the completed form and required documents
6. Deposit the minimum balance
7. Wait for account activation, typically within a week

Note: The specific requirements and process may vary depending on the country and post office.