M.A

Sociology is the study of society, the various interactions therein, the impact of various cultures on each other and the individual. Sociologists study human behaviour, which is greatly influenced and governed by social, religious and legal norms.
There are several career options available after BA

Yes, you can pursue both the courses simultaneously.

Yes, you can pursue however why do you wish to pursue a master again. You should opt for a job or some course that can help you in your current field.

You can take direct admission in IGNOU.

The scope of International Relations is moving towards the peak of new age careers, and the field offers great opportunities in varied spheres of economy. IR is a good base for high-level administration, investigation and analysis work in a number of professions.
1. Civil Services - You can join the

After completion of your graduation in BA you can go for MA in English literature.

Due to lack of clarity on what is the kind of exposure you have in HR it will be difficult to share advice.
However, you could pursue PhD in HR / English or seek special certification as a host of area in HR/training/analytics.

Yes, IGNOU has international reputation. It course material is of international standards. You can go for it. However, to enroll for MA one should have completed graduation.

Eligibility criteria for Master of Arts (Public Administration) is a Bachelor's degree in any stream of minimum 3 years duration. You are eligible to seek admission in MA Public Administration based on your B.Tech degree. B.Tech is sufficent qualification for seeking Government job.