Hey thanks for the response guys..
@Pix : AGCH is hardly an issue..no SD Blocking as i mentioned. Well we are implementing the changes tonight. Hope bringing down the Implicit detach timer from 24 hrs to 6 hrs would help, besides, MFRMS is changed to 3. Got my fingers crossed.
@Rex : T3212 is set to 2 hrs..no sd blocking @ all..can sure try n change it to 4 hrs though..:)