Hi Gopi,
Did you use Fiori template for developing custom app with SAP Fiori Toolkit or SAP River RDE?
Please double check the Tile/LPD_CUST definition.
- Understanding launchpad object relationship with screenshots
- How To Deploy an SAPUI5 App On Fiori Launchpad
If the definitions are OK, root cause is in your app code itself.
Regards, Masa
SAP Customer Experience Group - CEG