Hi Ashish. A few places to have a look:
1. Open up task manager and see if memory or CPU is being maxed out. This could be an indicator of an underpowered machine. It shouldn't cause an error, it should just be slow, but anything is possible.
2. Check the amount of hard disk space available. Sometimes temp space is leveraged, and if you're running low on available disk space, this may cause an error.
3. Open the Tableau Desktop log and it may provide more detailed errors. The default location is: C:\Users\YOUR_USER_NAME\Documents\My Tableau Repository