CBSE 12th

Go for CS directly. Doing any auxillary course without UG is meaningless.

What were your subjects in 12th? If you had PCB then you can pursue Biotechnology.

Its good that you pursued a challenging course like PCMB. You may want to choose your UG based on the subject you recieved the highest marks in. Also BCA and BBA are also good courses that offer a promising career. So I suggest that you choose something that you are good at.

I will answer your query about film direction. Jamia Milia Islamia is one of the best Institute in Theatrics and Visual Arts. Many bollywood and documentry writers are alumni of the institute. Also, in my opinion, 89 marks are good but being in General Category increases the level of competition and hard work. So, if your son is not interested or is reluctant please don't force him.

Hey buddy sorry to say that but you cannot get MNIT with these marks as you do not have 75% in class 12th.
You are not eligible for NIT's. Try for state government engineering colleges.

Please check for your eligibility to appear for the IISER 2018 from the criteria mentioned at the link provided below:
https://www.shiksha.com/science/exams/iiser-entrance-exam.

Hi Sanjay, An extremely creative field, animation as an industry is fast gaining popularity due to the fame and recognition received by many animated movies in the recent past such as Avatar, Frozen, The Lion King, Despicable Me, Finding Nemo etc. Please find the link below for detailed information on Animation course:
https://www.shiksha.com/animation/2d-3d-animation/articles/animation-courses-one-can-study-blogId-11462.

Please check for your eligibility to appear for the IISER entrance test from the criteria mentioned at the link provided below:
https://www.shiksha.com/science/exams/iiser-entrance-exam.

No, the Central Universities those are involved in a combined entrance exam follows a common counselling process too. So, its sad to hear but you can't get into this year. You may try next year with proper planning so that you can't miss the exam.