How to Change Mother's Name On My 10std 12std b.com Marksheets

I Have Completed My 10 Std From National Institute Of Open Schooling (NIOS). In My 10 Std Marksheet My Mother's Name Is Written As Priya Bait (With Surname). I Have Completed My 12 Std From Maharashtra State Board (HSC). In My 12 Std Marksheet My Mother's Name Is Written As Priya (No Surname). In My University Application I have Filled My Mother's Name As Priya (No Surname). But My Mother's Real Name On Documents Is Namrata Also On My Birth Certificate It Is Written As Namrata. So What Should I Do :( At The Time Of Documents Verification For Government Jobs This Error Will Cause A Big Problem For Me.