Mass Communication

Dear Nithin,
There is no specific time to enter in the film industry, if your skills are good and have good contacts then, entering into the industry becomes easy. However, without contacts getting work is something that you struggle for. So, become the best in your field and then enter the industry.
All the best.

A journalist who writes for online portals is referred as digital journalist. So, you can pursue Bachelor degree in journalism to become a journalist, and then you can opt for working in web portals.

Digital marketing is in demand. In coming years, this will be among the top programs. It will be a part of curriculum of management as well as other programs.

In 11th and 12th you can take journalism and mass communication subject as optional along with your core subjects.

If you want to become an actor, then why you want to prepare for civil? If you want to become an IAS just for money and power, then I would suggest you to go for acting instead of IAS because you don't have real passion to become an IAS.
If you have real passion and you want to become an IAS for the social development, then you will really love your job.