Due Date for gst return

Tina Jain (CA) (250 Points)

04 August 2018  
If gst registration got done in july
2018 and turnover is less than 1.5 crore but composition scheme is not opted then
1. if no sale purchase took place uptil now , whether filing of return is required
2. if filing is required then what is the due dates for month of july return and which returns need to be filed and their due dates?