I would like to create custom controls using xamarin android visual studio. I have created this as sample project using xamarin forms and it works fine: http://blog.falafel.com/learning-xamarin-custom-renderers-in-xamarin-forms/
Now my req is I want to create something like: 
Above control I have created using fragment - android native controls. I want to create now exactly same in Xamarin Forms using Renderer.
The following link is a great tutorial to get you into how to write custom renderers, along with the code sample here.
If you follow the essence of there example you will see how to write an Android renderer and be able to test it, however for what you are trying to do you have to make some alterations.
You will want to specify the assembly ExportRendererAttribute to expose your custom renderer and allow this to be registered for use. This will then make your class implementation callable when it is encountered rendering a Xamarin.Forms page.
As you are creating a composite control you will want to derive also from ViewRenderer<> passing your custom View that is shared across all platform implementations, and the base control that you will use for hosting your new composite control (look at your sample composition that you already have done and take the top-most element).
Unlike the example in the link you will not override the Draw method as you are not going to be painting directly onto the Canvas. Instead you will create your layout following what you have already done, but you will place this code within the override OnElementChanged().
