CBSE 12th

Hi Debayan,
Economists analyze issues related to growth and development, welfare and policy formulation, and assess their long and short term significance for the country. Economics is the study of production and distribution processes and the most effective means of utilizing available resources.
Economists work in one of the three sectors:
Government and Public sector enterprisesIndustry and TradeBanking and Finance
Economists often specialize as Research Economists, Business Economists, Agricultural Economists, Financial Economists, International, Industrial or Labor Economists.
Skills required
Good at numerical ability to work with figures
Interest in current affairs & ability to assess implications from an analysts view point
Logical thinking
Mathematical acumen
Analytical skills
Good communication skills in speech & writing to explain complex economic analysis to non-specialists
Ability to handle concepts & figures with ease
Abilty to clarify thoughts and predictions in relation to the industry
Employment Opportunities
Banks
Business journals and newspapers
Census organization
Employment organizations
Finance and investment firms
Government and public enterprises
Labour departments
Labour tribunals
Market research organisations
Research organizations

Sonu, if you find Science difficult, you can change the stream.
If you have any passion for computers you can go for BCA or B.Sc Computer Science or B.Sc IT.
If you want to learn the tricks of management or want to start your own business, BBA, B.Com (Professional) can be good choices.
If food and its aroma arouses you, hotel management can be your calling. Or on this line only, you can join a course in tourism and hospitality that is going to take you places.
If you believe in weaving a magic with your words and also have a streak of adventure in you, you can go for BJMC or even Bachelors in Film and TV production.
If you are having a creative bent of mind and you want to show that creativity by making inanimate objects move and talk, you can think of a course in Multimedia and graphics. If you love showing this creativity on cloth and on canvas, then its fashion designing and fine arts that you have an aptitude for. If your creativity lies in making the interiors of a place appealing then certainly you should go for interior designing.
With so many good conventional and modern options available to you, you can make a successful career for yourself by choosing a branch of your choice.
After choosing a course , another important thing is the institution/ university from where to do the course. There are many world class universities with modern infrastructure and highly qualified, experienced faculty who have mad a name for themselves in the field of education by imparting quality education.
Not only are they imparting quality education but some like Lovely Professional University, Chitkara, Maharishi Markandeshwar University etc are also offering good placements, etc. Some of them also offer scholarships.