Hello Akarsh,
For this kind of behavior, what we can recommend you is to try removing the CMOS battery and leave the system without it for about an hour. Then put it back on and restart the system. http://www.intel.com/support/motherboards/desktop/sb/CS-028780.htm?wapkw=clear+cmos+battery#datetime
Test the system out of the chassis, minimal configuration please. (Motherboard, processor, power supply and memory)
Can you test the system using another power supply or processor just for testing purposes?
Finally, make sure you have the latest BIOS version installed on your system.
https://downloadcenter.intel.com/SearchResult.aspx?lang=eng&keyword=%22dp67bg%22&DownloadType=BIOS
If the behavior continues and if the motherboard is still under warranty please get in touch with our Warranty Department so they can help you to replace the unit: http://www.intel.com/p/en_US/support/contactsupport
Regards.