Hello santhosh
Have you read
http://www.matrixmultimedia.com/mmforum ... =26&t=6936
That will help you. (espically C) configuration settings as that could be your problem!).
Have you placed a suggested C Box with osscon, and value suggested?
in configuration window is watchdog timer set to off?
Is Oscillator set to internal with port I/O?
Is RA5/MCLR set to RA5, unless you have a pull up resistor on pin 4.
Is low voltage programming disabled.
Set up Flowcode to produce 1 Hz Flasher. Is the port toggling at correct frequency?
If you have MPLAB installed, You can first select 'Configure' then select device. From file menu select import. then import hex generated by Flowcode, and you would be able to look at the how all the configuration bits have been set by selecting 'Configure' & 'Configuration Bits..'
After reading information in the above link, and you still have problems, Then if your OK with making your flowchart public, then if you post it, someone will take a look and help you further.