Re employment under government

Is gramin dak sevak who is not a regular employee of india post /central government , govern by a non statutory rule (GDS RULE 2020) rather than CCS RULE 1965 who is removed from engagement which shall not be disqualification from future engagement as a major penalty after D&A procedure,the impugned order does not expressly written bar to future engagement . Now if they applied for regular employment through direct recruitment like upsc/ssc . If they came out successful will they offer the job in upsc/ssc or selection authority have discretion power to reject the candidature . The latest notification of GDS mentioned the already removed candidates to not apply and debarred . Like regular employee under dopt handbook of personnel officer removed/discharge from service candidate list is sent to sp police office for future character and antecedents of job under government. Does the department of post sent the details of removed from engagement candidates to superintendent of police of person district to prevent future employment under government