How to merge data in plots ?

i have India borders map,

and now i am giving command borders('India');i am getting the Indian borders map , but I want to know how to merge my .mat file data (of dust)into it.

I want to merge both the plots, given in the below attachments, so that i can get data with India borders

[KSSV]

Both the data might be in the different units, you have to convert them into same units before plotting them.