14 January 2021
If there is NO errors of details in your SSC or 10th standard certificate (mark sheet), then the mistake in your Transfer Certificate is an error made by the school itself. So please approach your school with a formal letter written to the Principal of the school requesting to issue a proper Transfer Certificate, and attach your 10th Certificate (marksheet) with the correct details.
Your school records will have the right details, and since your 10th certificate (marksheet) is correct, this will help the school issue another proper transfer certificate.
If there is an issue in both the 10th Certificate and Transfer Certificate, you will have to get an original caste certificate from the village office/tehsildar with your CORRECT caste mentioned in it.
Again, write a formal letter to the head of the school, and attach the original Caste Certificate along with it. The school will proceed to do the needed, after that.
Hope this helped!