Humanities & Social Sciences

Here are some:
DBS Dehradun
AMS Dehradun
DMS IIT Roorkee
Gurukul Kangri Vishwavidylaya, Haridwar
Himgiri ZEE University, Dehradun
Graphic Era University, Dehradun

All the decent colleges are offering economics honors, but you should have mathematics in class 12th as the eligibility criterion.

Econometrics is in high demand and the most sought after specialization in economics as it is needed for analytics and forecasting estimates of economic variables. You can get a good position after specialization in econometrics.

1. LSR Delhi
2. St. Stephen's Delhi
3. St. Xavier's Mumbai
4. Presidency Calcutta
5. Christ Bangalore
6. Loyola Chennai
7. MCC Chennai
8. Hindu Delhi

This will depend on the college that you decide to take admission in

You can go for either. In case you particularly have an interest for sociology then that would be a better choice.

Dear,
If you want to enter into finance, research or planning related job than economics programme will be the best fit but on the other hand, you can check these option for good growth and knowledge too.
MBA-finance, International business, Marketing, Insurance
LLB
International Relations
Advertising
Journalism
Digital Marketing
CFA certification
Development studies
Public Policy
So choose the field according to your interest and calibre.
All the best.

You can have any subject like Arts, Commerce, Science or engineering in your 12th class and graduation but you have to qualify the written exam and SSB for that.
To get selected as an Army Officer you must qualify one of the following exams:
After 12th - NDA followed by SSB
Or
After Graduation - CDS followed by SSB
Or
After Engineering - Direct SSB
Or
If you are NCC 'C' Certificate holder then you can directly appear for SSB interview.
All the best.

Depending upon your interest you can choose any subject from English, history, geography, political science, economics, sociology etc. Most of these subjects are useful in preparation for IAS/PCS and other competitive exams after graduation.