Nifty and Bank Nifty 90 min charts turned to positional buy mode since 26 Dec 2012, Currently the support zone is coming near 5880 and 12398 respectively. Be in the long side until the support holds. Reverse your positional shorts if the support zone breaks.
Though Nifty is in buy mode it is still trading below the intermediate resistance zone 5274 and 10329 and the cloud supports coming near 5196 and 10159. Further positional longs should be initiated only if the intermediate resistance zone breaks on the upper side until then its stay away from Longs.