You need not to worry much about the convener sign on TS EAMCET hall ticket when you are going to attend the TS EAMCET examination then you need to get signed by a convener as asked.

Instead of convener sign you can also get signed by any of the principles or headmasters of nearby Government schools colleges or any other  educational institutions or other fields like government engineer like assistant engineer and electrical engineer or civil engineers.

Actually in many of the examination centres convener sign is not a must but as asked by the government it would be better if you get signed by a convener or any other government official as mentioned above on your EAMCET exam hall ticket