how to get all records from department wise having max salary?

i have a Employee table which consist

id  |  name   |   dept_id   |  Salary
1      A		1	        20
2      B               1	        25
3      C		2	        30
4      D		2	        25





Search max salary department wise with all details like below result.

id  |  name   |   dept_id   |  Salary
2      B               1	        25
3      C		2	        30