May I get pensions

I was appointed in 2003 as TGT and served the Directorate of Education for about 5 years. Later on, I applied for PGT through proper channel.I was selected and got fresh appointment as PGT in 2008. Am I entitled for pensions and other benefits because I had been serving as TGT in the same deptt and had applied through proper channel also. I am fully devoted to the organisation since January 2008 and I have motivated many friends to join DELTA. I am in depression by the present situation in school and want to go back as TGT.Is it possible? Which one will be more beneficial TGT or PGT. Please clarify.
Monika