Loss in pension due to wrong joining date submitted by employer?

I joined in EPF -71 scheme in 27/05/1984 and then after joined in EPS 95 scheme from 16/11/1995. I retired on 28/05/2018. But my employer has submitted my EPF -71 joining date 01/01/1985 instead of 27/05/1984 to pension office. Is any loss in pension due to change of past service period in calculation past service benefit /pension ?

I joined in EPF-71 scheme in 27/05/1984 & EPS -95 scheme in 16/11/95 and retired on 28/05/2018. Buy my employer has submitted EPF -71 joining date 01/01/1985 instead of 27/05/1984. Please inform me effect of this on my pension alculation.

I joined in EPF -71 scheme in 27/05/1984 and then after joined in EPS 95 scheme from 16/11/1995. I retired on 28/05/2018. But my employer has submitted my EPF -71 joining date 01/01/1985 instead of 27/05/1984 to pension office. Is any loss in pension due to change of past service period in calculation past service benefit /pension ?

Dear Sir,
Greetings!!
As there is mistake of one year, that can be altered in EPF department with the declaration letter of your last employer, if you haven't change your job and completed in one organization its so simple to correct with EPF department.
Rgds