Hi prateek13,
Your Answer is NO, you can not control Solo Pro & Extra 300 with one controller.
If you see, only sticker color is different, but in real also both are different controllers.
I bought it, and my bad luck in 2nd day my Solo Pro Controller got faulty, So I went shop, and again my bad luck I was the person who bought last Solo Pro, so no other solo pro controller was there but there were hell lot of NE Planes and Shopkeeper try Plane Controller but they didnt work.
I didnt dig more but If you search, you will find both controller have different Item Code
My Suggestion buy New Nine Eagle Free Spirit (for Big size) or buy JC Heli, exact replica (even parts are also interchangable) of NE and cheap also.
http://www.helipal.com/select-by-brand_jiuchon-helicopters.html