Hi Yogesh,

If you write a supplementary exam in the 10th class, it will not affect your upcoming government job. Because it will not reflect on your mark sheet. The Class 10th marksheet is only considered to verify the date of birth of the candidate and match basic eligibility criteria.
The marksheet with the maximum mark will only be considered.

So, if you write a supplementary exam in the 10th class. There is no effect on the government job.

All the best.

Thank you.
Regards,