Chemical Engineering

As per your query, the branches, as per potential of the candidate, are as follows:
Computer science
Mechanical
Electronics communication
Electrical
Metallurgical
IT
Instruments and control
Biotechnology
Marine engineering
Aircraft Maintenance
Aeronautical
Avionics
There are several branches an individual can choose and make their career in the engineering field:
Recently, a report in Times of India claimed that mechanical engineering is the most preferred engineering branch in India rather than Computer science and I can explain you the reason behind that too.
India is striving hard to become a manufacturing economy from current service sector economy with the government initiative of Make in India. It is moving towards manufacturing based rater than the service based economy and that is the reason behind mechanical being the preferred branch.
You can also go for Computer science as it has got no ending career prospects in the top IT firms with good careers prospects ahead.
I will suggest you to either choose mechanical or Computer science and engineering.
All the best.

We have got average placements for chemical engineering department in VIT, Pune. Highest salary package was Rs 8 lakhs per annum last year (excluding IT companies). Average package is around Rs 4 to Rs 4.5 lakhs per annum. Some of the top notch companies coming for placements are NFL, Loreal, Alfa Laval, Techno force, Pernod Ricard, Praj, Emerson, Honeywell.
Moreover, from this semester onwards final year students are supposed to do a semester long internship in core companies related to their respective branch. The plus point of VIT being, people are getting PPOs (pre placement offers) from the companies they are doing internship in. This solves the problem of placement of those people who don't get placed via campus interviews. Also, once you do the internship, company knows about your performance. So if you perform well in those 6 months, company would directly offer a PPO with a very good package which they may not give to the person freshly giving an interview for the respective position.
Recruitments for these 6 months internships are even better (as compared to placements) for chemical engineering department with an above average stipend!