This vyapar software using for billing (including GST), Inventory & accounting, 3 year plan if you buy from direct official website or another seller but we are authorised distributor so we provide you aditional support.This software working online & offline.easy and fast billing simply steps. This license one mobile 3 year validity, aditional support we provide any doubt or issues related this software just one call we solve it for you. This software once installed not returnable. you need door step installation you pay additional 250 R.S after instalation complete. if digital copy need just one call after purchase we will activate your vyapar software in 10 minutes to 1 hour (depending on internet connection speed).