The highest volume of work that I have done so far is through the recruiters Contentflix & Makerdemy on Talentrack. Both have been extremely professional and payments were made without delay. Talentrack's process is very transparent.
Talentrack is India's largest talent-hiring platform for the media and entertainment industry. As a member, you can apply for unlimited jobs/auditions by top recruiters at no extra cost. You do not have to pay any commission for the projects you get placed on by applying on Talentrack.