Before commencing any activity, traders are required to apply for trade license. This is not a one-time application, as the license does not have lifetime validity. Trade license is to be renewed at the end of every year. If there is any delay in renewal, the applicant will be required to give reason for the delay and file for renewal along with the due fees. More info about license renewal click enterslice.com/trade-license-indiaMore details: How To Renew Trade License?