A user is concerned about their OBC NCL certificate, which was initially issued based only on their father's income. They have since renewed it with updated documentation including their mother's income, but the certificate number remains the same. They are seeking advice on whether this could lead to future disqualification, even if appointed under the General category. The advice suggests that while the certificate number issue might seem odd, the key is that it was issued by a competent authority. However, it's crucial to ensure the income declared is within the OBC NCL limits and to use the latest certificate obtained through a fresh application process, as OBC NCL certificates are typically valid for one year and not simply renewed.