I joined as an A.T. in Govt-Aided School on 21/06/1988. I had taken leave without pay from 11/02/2008 to 31/03/2009. I re-joined on 01/04/2009.My BASIC PAY was 24440 on 01/07/2007. What would be my increment on 01/07/2009? From Which date & month would I get 20 year Benefit? What will be my BASIC PAY on 01/07/2015?