LLB

Dear
You should have minimum of 50 percentage in your graduation degree.
You need to prepare for CLAT exam through that you would get good law college.
Many universities have their own entrance exam as in admission process. For that, you can check Shiksha's website for the top law college and their admission process information.
All the best.

There's no age limit for pursuing CA!

If you want to practice in Indian courts after law degree you are advised to do regular LLB as Bar Council of India does not recognise LLB through distance learning.

After LLB you can practice in lower courts. However, it is advisable to work under an experienced advocate to learn basics of court procedures and practices.

There can never be confirmed placement after a degree even from best Institute in world. Probability of getting job after LLB from DU is very high.

Yes, you can definitely pursue mass communication and journalism after completing BA in arts.

Dear,
According to your query, I would recommend these options:
Development studies
Public Policy
Public Administration
International Relations
Human rights
Social Work
All the best.

Law has good opportunities and scope across India. Following career opportunities are available after law graduation degree:
(a) Corporate lawyer in law firms
(b) Independent practice as lawyer
(c) Lawyer in large business firms/ PSU/ banks in internal law department
(d) Lawyer in Indian Army in legal corp as commissioned officer
(e) Indian judicial services
(f) Education industry with higher degree qualifications.
(g) All jobs where eligibility criteria is graduation degree.