Help Regarding Custom and Excise duty Calculation !!

I plan to import lubricating base oil from iran, i need to know the complete custom and excise duty that i have to pay on this product.
Please also tell me how can i save most of it, i.e the duty. ?
P.S - The H.S Code is 27101960.
The price of the product is $740/MT. It will be of a lot of help if you can illustrate with this price only.
Thank You.

sir,

the formula is attached in excel sheet please look and reply me in urgent .

exchange rate is 46.75*740=34595 is cif and custom duty is hetrwith attached.

ramesh kumar