Sir,
I would like to answer the last part of your question first. As a normal trend a full time regular degree /Diploma in HR is most sought for with a lot of companies for a HR position. On the same note there are also enough companies who have a strong preference to look for a person who should have a good exposure in HR / IR /Ops activities irrespective of their education qualification be it regular MBA or through correspondence.
I used to know quite a few companies who had a preference to take Army professionals in their HR /Admin deptt. Whether they are MBA or not because of the fact that it’s a thought process that Army people are highly process and discipline driven & can handle people & tough situations in a far more better way.
As per my insight I see & had seen Army professionals & people having a back ground like you fitting well enough in the HR Deptt. Of Industries like Real Estate, Manufacturing Concerns, Infrastructure Companies, Aviation or Heavy Machinery Companies etc.
But again it depends on Company to Company & their need in terms what kind of HR professional they require.
Coming to your case although you have done MBA from Correspondence but at the same time where I see the value addition is that apart from HR education you also are a LLB + you have a substantial Ops experience. A combination of the above 3 aspects is a decent combination for a HR job. But in a market condition which is going on right now I am little cynic about the HR jobs available & the skill set required.
Reference HR questions I might not be too accurate but some very spontaneous questions can be asked from you during the interview once you start explaining your background OR your work experience OR at the same time you can also be asked some situational questions where you will be given a situation & will asked that what will you do in that situation OR how will you act /react in that situation.
Now these type of questions will be difficult to pen down here , still the questions given below you might find fruitful:-
a) Why you choose to go for HR or looking for HR job after spending 20 years in Ops. Why not Ops?
b) Why you think we should hire you?(All time favourite Q of a lot of interviewers )
c) Why haven’t you got enrolled for a regular course in HR? What value addition do you think that you have got by doing HR from IGNOU?
d) What qualities you think one should have to be a good HR professional?
e) How you think you will be able to maintain a balance between employees & management without upsetting either of them & Do you think it is possible to keep everyone happy?
f) What you know about our Company ?(It is always a suggestion that before going for an interview with a company always do some research on that Company through different Sources )
g) What are your strengths & weaknesses Or Area of improvement?
h) Share with us one very tough situation in your work life & how you dealt with it?
i) How do you think you can convince people to accept your company’s management thoughts or ideas.
j) What is your idea about basic leadership style? Give a few examples of how you have practiced this? (In case if you would have managed a team in your last employment)
Hope all this will help.