We need 2 payment gateways developed using WHMCS payment gateway development kit ..
Download : [url removed, login to view] (You will need to create a free account to download it)
50% of code is already given in it and also the instructions to where to put your custom code (from API's provided with this project) ..
I am also attaching the complete API guides of the 2 payment gateways using which you will be creating these 2 plugins, everything is given in them parameters, functions, form examples and everything you need.
Please note that our first one Ipaydna uses sales page and works just like paypal and other intabill is like [url removed, login to view] where client will always be staying on our site ..