वेतन निर्धारण सम्बन्धी विसंगति

Sir i am teacher in kendriya vidyalaya sangathan i am working since 2003. in january 11, 2012 i was selected as PGT (GP4800) by direct recruitment made by KVS in same department and join as PGT. Before joining the PGT post I was TGT and my basic and grade pay was (14710+4600) as i joined on 11-01-2012 my department fixed my pay from date of joining i.e.11-01-2012. My department fixed my pay (15290+4800) by giving one increment on previous pay in lower post. But they did not give increment on 01-07-2012. Which is my regular increment . They also not give me option for pay fixation i wrote several times but they denied saying that option for fixation is not available in case of direct recruitment. Now a PGT who joined in august 2013 by the selection of departmental exam and was equal to me in pay in my lower post i.e.TGT is getting higher pay than me. He was equal in lower post and about one and half year junior in higher post is getting more pay. kvs is giving benifit as promotion to the employee recruited by limited department exam taken by KVS and I was selected by open exam and I was also eligible for Limited department and i also submitted my application form for the post of PGT  but KVS didn't organize department exam at that time and take after two year. meanwhile I was selected by directed recruitment and joined. I have written several letters to my depat. but no response. Please give your valuable advise....