Release Date of Interview Call Letter:
The release date of the interview call letter for the IBPS RRB PO exam varies each year. It is generally announced a few weeks after the declaration of the exam result. The IBPS (Institute of Banking Personnel Selection) releases the interview call letters on its official website. Candidates can download their call letters by logging into their accounts using their registration number and password.

Further Selection Process:
After the online examination for the IBPS RRB PO post, candidates who qualify by securing the minimum qualifying marks are called for the next stage of the selection process, which is the interview round. The further selection process includes the following steps:

1. Interview: Shortlisted candidates are invited for an interview conducted by the participating organizations. The interview panel evaluates the candidate's suitability for the post by assessing their communication skills, knowledge, and overall personality.

2. Document Verification: Once the interview is conducted, candidates need to submit the required documents for verification. These documents include educational certificates, identity proof, caste certificate (if applicable), experience certificate (if any), etc.

Result Announcement:
The result for the IBPS RRB PO exam is generally declared within a few weeks after the completion of the interview process. The result is published on the official website of IBPS. Candidates can check their result by visiting the website and entering their registration number and password.

Important Points:
- The release date of the interview call letter and the further selection process depends on various factors, including the number of vacancies, the number of candidates, and the overall selection process timeline decided by the IBPS.
- It is important for candidates to regularly check the official website of IBPS for updates regarding the interview call letter, further selection process, and result.
- Candidates should keep all the required documents ready for the document verification process to avoid any last-minute hassle.
- The final selection of candidates is based on their performance in the online exam and interview, as well as their document verification.
- It is advisable for candidates to prepare well for the interview round by practicing commonly asked questions, reading about current affairs, and enhancing their communication skills.