To find your Customer ID for your India Post Payments Bank (IPPB) account, you can start by checking the welcome kit you received when opening the account, as it includes important details such as the Customer ID. Another place to look is your passbook or any account statements issued by IPPB, where the Customer ID is usually mentioned. If you can access the IPPB mobile app, logging in can help you find your Customer ID on the dashboard or within the account details section. Alternatively, you can contact IPPB customer care at their toll-free number, 155299 or visit the nearest IPPB branch, where you can provide your account number or registered mobile number to retrieve your Customer ID. Additionally, check any email or SMS alerts from IPPB, as these might contain your Customer ID. Visiting an IPPB branch in person with valid identification documents is another reliable way to obtain your Customer ID.