The primary role of a casting director is to select actors who are best suited for specific roles in films and television shows. They work closely with the director and other members of the production team to find actors who can bring the characters to life and contribute to the overall success of the project.

Open casting calls are open to all actors, regardless of their experience or background. Closed casting calls are limited to actors who have been specifically invited by the casting director or the production team.

Casting decisions in Indian cinema are influenced by a combination of factors, including the actor's physical appearance and personality, their acting skills and experience, their popularity and fan following, and the availability and budget constraints of the production.

During an open casting call, the casting director reviews the submissions and selects the actors who they believe are the best fit for the roles. They may also conduct auditions to further evaluate the actors' performances.

Closed casting calls are used to invite specific actors for auditions. These actors are typically selected based on their previous work, their reputation, or their suitability for the role.

Casting directors in Indian cinema face a number of challenges, including finding actors who are willing to work for low wages, dealing with nepotism and favoritism in the industry, finding actors who can speak multiple languages, and finding actors who are available for long shooting schedules.

The casting process in Indian cinema has evolved over the years in a number of ways. It has become more transparent and merit-based, more centralized and controlled by a few casting directors, more diverse and inclusive, and more reliant on technology.

Some of the recent trends in casting in Indian cinema include the rise of online casting platforms, the increasing popularity of non-traditional actors, the growing importance of social media in casting decisions, and the use of artificial intelligence in casting.

Some of the challenges that the casting process in Indian cinema is likely to face in the future include the increasing demand for actors who can speak multiple languages, the growing influence of social media on casting decisions, the rise of artificial intelligence in casting, and the changing demographics of the Indian population.

Aspiring actors can improve their chances of being cast in Indian films and television shows by developing their acting skills and experience, building a strong portfolio of their work, networking with casting directors and agents, and promoting themselves on social media.