The service sector, also called tertiary sector, is the third of the three traditional economic sectors. The other two are the primary sector, which covers areas such as farming, mining and fishing; and the secondary sector which covers manufacturing and making things.

Real estate, transport, and restaurants/hotels are all examples of service sectors in India. However, the formation of electronic television does not fall under the service sector.

Explanation:
1. Real estate: Real estate refers to the buying, selling, and renting of properties such as land, houses, and commercial buildings. This sector involves services like property management, brokerage, and construction, making it a part of the service sector.

2. Transport: The transport sector includes various modes of transportation such as roadways, railways, airways, and waterways. It encompasses services like passenger transportation, goods transportation, logistics, and courier services. Hence, transport is a crucial component of the service sector.

3. Restaurants/Hotels: Restaurants and hotels provide hospitality services to customers. This sector includes food and beverage establishments, accommodation services, and catering services. Restaurants and hotels are an integral part of the service sector in India, contributing significantly to the economy.

4. Formation of electronic television: The formation of electronic television does not fall under the service sector. This activity is related to the manufacturing or production of electronic devices, which falls under the manufacturing sector. The manufacturing sector involves the creation of goods through various processes, including assembling and production, rather than providing services.

In conclusion, while real estate, transport, and restaurants/hotels are all examples of service sectors in India, the formation of electronic television is not part of the service sector. It belongs to the manufacturing sector.