What Madam Suchitra has stated is true. .Each Attorney charges differently and there is nothing unusual .I know Attorneys who charge even 20T to 50T for one trade mark registration. It depends.
Attorneys like me only know how harassing it is to deal with Trade Mark Registry people. It is corrupted like anything. Now one well abled official ,Mr.Kurian.I.A.S. is heading it and he is really brining in changes in the whole administration of the TMR.
Therefore,before anything else,please understand that to get your mark registered your Agent ought to have taken pains-real pains. Therefore, it is no harm if you pay him to get him satisfied. Why because,it is not going to be over with this alone.
He has to assist you forever. You would need him always. Sometimes someone may copy your mark,sometimes some similar mark may be applied for registration, sometimes you may change your ownership,change your address- for all these things he would come to you to help,provided you should not make him feel bad by questioning his asking for the fee.
Take this in a friendly way, I am sincere. This is the practical world. Your attorney cannot account you all that what he might have spent to grease the palms of greedy Trade Mark Registry Officials. So be good to him,please.