about the lca,
well i believe that production of the lca and mrca will start around 2011-2012 at HAL, i read this news report saying that at the moment HAL is producing 80 aircraft per year (mki, hawk, and alh), but by 2012 it will problabably increase to 100-120 a/c per year. or the hawk line will be replaced by lca (both are small planes) and a new line will be started for the mrca.
so to simplify this
2009-2012 350 AC (100 MKI's, 50 ALH, 100 Hawk, 100 light helicopters (out of 397 total RFP after eurocopter lost trial) )
2012-2014 160-180 AC (40 MKI, 50 ALH/LCH, 20 LCA, 20 MRCA, 20-40 light helicopters)
2014-2020 500-600 AC? (160 MRCA(iaf will most likely order those 74 options), 200 LCA, 100 ALH/LCH, rest of light helicopters and maybe PAK-FA)
but by 2020 paf will have
-250 jf-17
-50 j-10
-70 f-16
-10 AEW(hawkeye, y-8)
-6 AEWACS(eyrie)
-10 refuellers