As your company does not sponsor you (your husband does)you will not need an NOC from your current employer for your next employer. Simly give them notice and leave at the end of the notice period. You will likely need to get a letter of no objection (NOC)from your husband to give to your new employer.

Your notice period will be stated in your contract and will be anything up to three months. The normal that I have encountered in one month.