Contract manufacturing

We are into business of manufacturing & bottling of liquor.The liquor business comes under the state excise and policies of all the states are different.We are manufacturing products for our principle who are owner of the brands produced by us.Due to license restrictions products has to be sold at our names as the license is in our name.The whole investment is of the principle. The whole profit is transferred to their books and we only get bottling charges. We transfer goods to other states on F FORM to a bond in ours name.Is it legal to transfer goods on F FORM ?? Plz suggest & give judgement regarding the issue..