BCA

Pay scale for BCA fresher:
Private Sector
-Private sector companies provide very high salaries to BCA graduates.
-They are appointed as software developers.
-Initially, they will be given training.
-In the training period itself, they can earn up to Rs. 20,000/- per month.
-The scope of getting a job and higher salary will be more for postgraduates.
Public sector jobs after BCA
-BCA graduate can find jobs in petroleum sector industries like Oil and Natural Gas Corporation Limited (ONGC), Bharat Petroleum, etc.
-They are paid a very high salary in public sector, along with certain extra benefits. The initial salary can be up to Rs. 25,000/- per month.
Jobs abroad after BCA
A graduate in computer application can also find numerous jobs in many companies abroad.
-These companies pay the graduates with very high salaries.
-They can earn up to Rs.50,000/- per month in the initial stage itself.

After BCA, you have good chances of becoming a business analyst. You must go for MBA-IT. Mostly, IT companies recruit students from B-Schools for business analysts job profiles. Big 3 IT companies like TCS, Wipro, and Infosys, every year, recruit students in large numbers from MBA colleges. The analyst works with the business to identify opportunities for improvement in business operations and processes. The analyst is involved in the design or modification of business systems or IT systems. He/she interacts with the business stakeholders and subject matter experts in order to understand their problems and needs. He/she gathers, documents, and analyzes business needs and requirements. The analyst solves business problems and, as needed, designs technical solutions. The analyst interacts with system architects and developers to ensure the system is properly implemented. The analyst may help test the system and create system documentation and user manuals. As you are a BCA student, you will find it easy to work in job roles in IT companies, hence MBA in IT is a better option.

Hi,
Bollywood music industry is totally a different platform which is based on your talent, luck and network. To become a playback singer, you don't need or require to have a degree or Diploma.
So, I would suggest you to search and pick an esteemed music guru who can groom your talent. Do riyaz and practice regularly. Prepare your demos of latest trends which can present your talent and quality of singing.
Watch singing shows on tv and attend the singing shows, events. Share your audios and videos when asked on TV shows. Try and participate in singing shows. They are the best platforms for you from where you may get chances to enter in Bollywood.
There is no such short-term course that can help your purpose.
if you can afford it, it will be great if you join AR Rahman Music Academy or Suresh Wadkar School of Music.
Hope it helped you.