Leave for articles

1) CAN ANYBODY PLEASE TELL ME ," HOW MANY LEAVES CAN I TAKE  IN AN ARTICLE PERIOD OF 3 1/2 years ON FRESH BASIS " i.e., after CPT   ?

2) My  PCC attempt will come on NOV 2008  and final will come on 2010  May

MY DOUBT  IS "IF I APPLY SINGLE GROUP IN NOV 2008 AND ANOTHER GROUP IN MAY 2009   ,THERE IS ANY EFFECT FOR FINAL ATTEMPT i.e., for May 2010

                                              PLEASE CLARIFY MY DOUBTS

                                                           THANKING YOU

                                                                                                                              Mahendranath