Sexual Harassment at workplace. What can i do?

Hi, This is happing since 2 years, Initially My boss used to comment on my attire and looks (all verbal), once i said him No, don't tack to me like this. After that he started discriminating me among other team members, not assigning work, purposefully finding out mistakes and then threatening me for job. Recently he threatened me for the third time, and again he is telling me stories about his good relation with other girls and why only i have problem with him. I complained about him to our top management, they have formed ICC, but i feel everyone is biased as he is top 2nd authority.