Urgent querry, plz help

PLZ HELP ITS VERY URGENT.

DEAR SIRS,

WE ARE A KRAFT MANUFACTURING FIRM & PURCHASING PET COKE (USED AS INPUT IN OUR PRODUCTION PROCESS) FROM RELIANCE INDUSTRIES LTD  (BOTH SEZ & DTA) THROUGH DEALERS.

WE HAVE BEEN PAYING EXCISE DUTIES ON SUCH PURCHASES AS FOLLOWS:

1.  PURCHASE FROM SEZ:

  BCD:       2.5 %

CVD:         14%

ED. CESS:   2% ON CVD

HED. CESS: 1%  ON CVD

ED CESS:      2% ON ALL ABOVE

H ED. CESS:  1% ON ALL ABOVE

2. PURCHASE FROM  DTA:

  EXCISE DUTY :     14%

 ED CESS:                 2%

HED CESS:               1%

PLZ LET US KNOW  REGARDING WHAT AMOUNT WE CAN CLAIM AS CENVAT CREDIT IN ABOVE 2 CASES?

PLZ LET ME KNOW REGARDING THE NOTIFICATION ISSUED, IF ANY,  SUPPORTING YOUR COMPUTATION OF AMOUNT FOR CENVAT CREDIT.

KINDLY REVERT BACK AT THE EARLIEST POSSIBLE.

REGARDS,

LALIT DHABRIA