May be you can check on PayScale - Salary Comparison, Salary Survey, Wages
I am not sure if they harge something. you can jus try a sample
I feel nobody will share the report that easily. Moreoevr it has to be relevant to your industry, sector, segment etc. You will have to make your own survey or will have to engage a expert consultant in salary survey field. I will suggest a name of consultant 'Cerebrus Consultants', Mubai and Pune. They work at other places also. You will have to spend both time and money to get quality inputs.
Thanks & Regards