Different caste name caste certificate and transfer certificate

While admitting to school my illiterate parents given My caste as mogera and in my school certificate is sc mugera and I had the caste certificate in the same caste till my appointment. but my caste is tamil speaking sc parayar. At the time of caste verification tahashildar cancelled my caste certificate since the mogera caste is belongs to the tulu speaking people of dakshina Kannada district.and I have been issued sc parayar caste on the basis of my family members caste which is issued by tamilnadu state .now I have caste certificate in the parayar community and in my TC my caste is mogera Now I have applied caste certificate for my twin sons with tahashildar order copy, caste certificate,tc and sindutva pramanapatra the same has been rejected saying that the caste name in TC is suspicious. Now what should I do to get my children's caste certificate done.