PAY U INTRG WITH ASPXCOMMERCE BASED PLATFORM STORE

Question

Hello Sir, 

               I have online store www.sandhushopchamba.com .So i want to develop new PAY U  payment gateway or intagrated with my store .Sir, my site is ASPXCOMMERCE plateform based .So i tried but failed so it is request to you kindly suggest me how to intagrated payment gate way with my store

 

Help me.

 

Best Regards

Ranbir Singh