Distance/Correspondence

You should either consider Bangalore Open University or Mysore Open University.

For Part-time B.Tech, you can go for VELS.
http://www.studyguideindia.com/Colleges/Distance-Education/default.asp?Course=B-Tech-Colleges&State=TN&ct=1

ELIGIBILITY CRITERIA
Aspirants seeking admission to 2-year Full-time M.A. Program should meet the following criteria as specified by the institute.
Academic Requirement:
Candidate should have passed Graduation and a Bachelors degree obtained through the 10+2+3 system or an equivalent qualification with a minimum aggregate of 50% or equivalent.
GRAND TOTAL FEE IS 54K.

You can go through the below mentioned link:
https://www.shiksha.com/engineering/colleges/distance-correspondence-b-tech-colleges-india

First follow current economic states, then books, online videos, some expert guides, finally your hard work is important.

Minimum eligibility is UG.

It depends on your skills, if you have good command then you can earn well. There is good scope after completing economics. You can apply in education field, business field and many more. The country's growth is depend on GDP (so on) and GDP is calculated by economists and many more. It will help both individual as well as society.

No, there are no such courses where you can easily find high paying jobs after a correspondence programme. It's better to go for a regular programme.

National Law School of India University (NLSIU), Admission Process: The admission forms can either be downloaded from the university official website or be obtained through post. The admissions are strictly merit based as of now and there is no entrance examination involved. Fee Structure: Given below is the estimated fee structure:
Admission Fee: INR 2000 (one time payment)
Application Fee: INR 1000 (one time payment)
Course Fee: INR 10, 150 (per annum)
Total Amount: INR 13,150
If the course is not completed within two years, then the students will have to continue the course by paying a continuation fee.

Hi,
Admissions start in June - July.