如何使用spplot函数和RColorBrewer填充区域

I have data file, with two columns, Column1-States; Column2-Saturation(%). Using package sp and RColorBrewer; To make map, i download gadm - level1 india. But i am not able to put percentage in Indian regions, how can i do that,please check my R- code The code is shown below I have data file, with two columns, Column1-Sta