In television, most of the action is in India. But those working in post-production, namely editors, sound engineers and dubbing artists, have a lot of scope for getting jobs abroad, because they have a competitive edge over their counterparts abroad: they usually have more experience because they start working at a younger age and they are used to working gruelling schedules.
Also, with so many channels being launched, companies do look for ideas from overseas and look at acquiring the rights to broadcast shows based on formats already being used in other countries.
Many overseas companies are getting post-production work such as editing and dubbing executed in India. So if you are working in this area, you will get to interact with international clients.