Hi @rajeevkrao!
Glitch has always made your projects sleep after 5 minutes, but people got around this by using pinging services to ping their project every 5 minutes or even less to keep their project online. Recently, Glitch banned these services after a series of major outages of the service, thought to be caused by an increase in the amount of pings and how quickly people chose these pings to be done. Read more:
The only way to keep your project online 24/7 is by paying for Boosted Apps
Hope this helps 
Happy Glitching 
Eddie