Hi Kavitha,Firstly let me know your profile as you have mention that you having 7 yrs of experience then you must be good in some HR activites .If you think you are good in recruitment and all other general HR activites then go for AIMA beacuse there you 'll know about International HRM , Managing Changes through Organisational Development but if you thing you need to expand your knowledge on more on Generalist part then you can opt for Diploma but you have to check from where you are doing this course.RegardsSaloni