Question:contract void or valid??

If you are the manufacturer of the product you can make such type of contract. Nevertheless you have exclusive right to sell that product then also you can make such contact. But there is no exclusivity in respect of the product then the contact may fall under the category of restrictive trade pesticides depending upon the subject matter and terms and conditions if the contact.

Thanks a lot very helpful

It again depends on the agreed terms and conditions of the contract.  The clauses for restriction may apply to a valid contract.

Your query lacks basic facts and background of the problem, if there is any.

 

However, products are not made to remain untraded. So, your question seems to be flawed & defective, if you think "exclusive rights to a product restricting trade with other parties as a vendor." A contractor can supply a product after purchase from the authorised distributor or retailer. So, the question of a contract being void cannot arise.