Ramandeep Singh

Instead of sending emails to forum members, with the hope that someone will either send you ready made tested code, or someone will take out time for you to read LCD controller datasheet (which you haven't even provided a link to) and then understanding/debugging the code (given to you by your dealer), I suggest you to do the following.

1) Read carefully the datasheet of the LCD controller.
2) Try to write your own code, starting from simplest functions
3) If you face problems, or you don't understand something, then come up with specific problem.

You can get the most from others, if you are willing to take at least first step yourself.