Assessable value in excise sale invoice

look into the dealers invoice , part B, you will find proper column for every query 

In Bill of Entry final assessable value is written (above Basic Custom Duty). Show this value in Excise Invoice.

The same shall be included in the sales Inoice ? and can exemption be claimed in the respect ?

dealer invoice ( excise) is only an instrument for passing the CENVAT or CVD, the dealer has to put the purchase ( import) details and price as per the purchase ( import bill) and in sales column declare the actual commercial sales price, without changing the duty content per unit.