sub engineers pay scale rectification

Sir,
1) 1) In the Telangana electrical department (TSGENCO, TSSPDCL, TSNPDCL, TSTRANSCO), Sub Engineers pay scale (20535) 50% less than the Assist engineer (42150) as per 2010 PRC.
2) 2) Sub engineer next cadre is AE.

3) 3) Natures of the works of both the cadres are relatively same.

4) 4) If the AE is not available (Leave or others), AE work must be done by sub engineer only.

5) 5) After 16 yrs only sub engineer reaches AE salary.

6) 6) It means one person joined as Sub engineer at the age of 25 Yrs, he reaches AE salary after 41Yrs. but cadre difference is only one stage.

7) This type of system not in all over the India

8) Humbly request is to change the increment variation, please support me.

9) Suffer from this problem is more than 3000 Sub Engineers.