Petroleum Engineering

List of top Polytechnic institutes offering Diploma course in Petroleum Engineering:-
1. Nandha Polytechnic College, Erode (Tamil Nadu), Erode - Perundurai Main Road, Vaikkaalmedu, Erode (Erode Dist. ). - 638052
2. Konghu Velalar Polytechnic College, Erode (Tamil Nadu)
Purumapalayam, Seenapuram, Perundurai, Erode (Erode Dist. ). - 638057
3. Sri Rajiv Gandhi Polytechnic College, Erode (Tamil Nadu), Erode - Chennimalai main road, Myladi, Chennimalai, Erode (Erode Dist. ). - 638112
4. DPC Polytechnic College, Salem (Tamil Nadu)
Chettiyar Kadai Bus Stop, Muthunayakanpatti (way), Salem (Salem Dist.). - 636 304
5. CPCL Polytechnic College, Chennai (Tamil Nadu), CPCL Factory Site, Manali, Chennai (Chennai Dist. ). - 600068
6. Annai J. K. Sampoorani Ammal Polytechnic College, Erode (Tamil Nadu)
T. N. Palayam (PO), Gobi (Tk), Erode (Erode Dist. ). - 638506.

Petroleum Engineering deals with optimizing extraction of oil and gas from the surface of earth. Petroleum engineers implement methods that maximize the extraction of hydrocarbons efficiently with least environmental hazards. Some of the top institutes in India that provide specialisation in Petroleum Engineering are:
Indian Institute of Technology, Multiple Locations
Birla Institute of Technology, Pilani
National Institute of Technology, Silchar
Vellore Institute of Technology, Chennai
Indian School of Mines, Dhanbad
National Institute of Technology, Calicut
Sri Ramaswamy Memorial University, Multiple Locations
Pandit Deen Dayal Petroleum University, Gandhinagar
National Institute of Technology, Bhopal
University of Petroleum and Energy Studies, Uttarakhand.

Well, both branches are good.
Depends on what you want to do. Engineers apply principles from science to create practical solutions to real-world problems. Chemical engineers use chemistry to develop fuel, food, drugs and new substances. Petroleum engineers cover chemistry and geology to extract oil and gas from under the earth's surface. Though both professions need a Bachelor's degree, they study different subjects.
Chemical Engineers:
Chemical engineers can work in any industry that uses material substances because they solve problems about the production or use of chemicals and other materials. They can create new drugs to relieve colds, find better ways to preserve canned goods or create airplane coatings that resist weather damage. They troubleshoot problems with manufacturing, develop new methods of production, ensure compliance with safety and environmental regulations, and development safety procedures for those working with hazardous chemicals. The profession requires a minimum Bachelor's degree in chemical engineering, which is more commonly called chemical and biomolecular engineering. A professional engineer's license may enhance job prospects.
Petroleum Engineers:
Petroleum engineers find more efficient and profitable ways to extract oil and gas. They design extraction equipment, plan how to drill in oil and gas fields and then recover the oil and gas, test and survey wells, and ensure that oil field equipment is installed, operated and maintained. They often work with geologists and other earth Science specialists to understand how geologic formation affects rocks that contain oil reserves. A Bachelor's degree in petroleum engineering is sufficient for entry-level jobs. However, a Master's degree allows work as an instructor in some universities, or in research and development. Practical experience, such as from an internship or summer jobs is also desirable for graduates.