How to view two tables data in gridview separately.

Question

Hi,

There I am new in asp.net. I am facing some problem to separat gridview data. I have created two tables in database like this,

Branch Table 

BranchID	BranchName
1	Silvar Tower
2	MM Tower
3	Bogra

 Extension Table

ExtensionId	SL.No	Name	Extension	BranchID
1	1	Test	101	1
2	2	TestTwo	205	1
3	3	TestThree	301	2
4	4	TestFour	405	2
5	5	TestFive	505	3
6	6	TestSix	601	3

 

Now I want to view those tables data like this image below,

Please help how can I do this with grid view in aspx page.

 

Thanks.