I want to make my career in the field of Electronics and for that I want to get the list of some of the best core companies in the field of Electronics so will you please share with me?

As you want to get the list of some of the best core companies in the field of Electronics so here it is for you:

Core Company Company Profile
BEL PSU that manufactures advanced electronic products for Indian Armed Forces

BHEL PSU that operates as engg. and manufacturing company.

Bioxcel Strategic consulting organization supporting life sciences organizations with corporate decisions.

Coal India It produces non-coking and coking coal of various grades for diverse applications.

Escorts Operates in agri-machinery, construction & material handling equipment, railway equipment & auto components.

Essar The company generally works in the sectors like power, communication, energy, steel, shipping ports, logistics & construction.

Godrej & Boyce FMCG that functions in real estate, consumer products, industrial engg., appliances, furniture, security & agri products.

Hughes Systique It offers Technology consulting, system architecture design & software development services.

IOCL It works in refining, pipeline transportation & marketing, of petroleum products to exploration & production of crude oil & gas.

John Deere Provides advanced products & services for agri, forestry, construction, lawn & turf care, landscaping & irrigation.

L&T Construction It has played a prominent role in India's industrial & infra development.

Mahindra & Mahindra The company works in Automotive, Farm equipment & IT businesses, as well as select positions in other sectors.

NTPC It is the largest power generation facility in India with a commissioned capacity of 39174 MW through its 30 power stations.

ONGC PSU that is engaged in exploration & production of Oil & Gas in India & Abroad

Panacea Panacea Biotec is the third largest biotechnology company as well as among the top 50 pharmaceutical companies of India.

Punj Lloyd It specializes in energy & infra sectors.

Reliance Reliance Industries Limited (RIL) operates in three segments: petrochemicals, refining and oil & gas.

SAIL It is leading steel making company of India.

Siemens It functions in the areas of Industry, Healthcare, Energy, Infra & cities, & Siemens Financial services.