Cell Phone Jamming Device and Network Jammer in India

Indian law does not make any exceptions for the use of signal jammers, although law enforcement agencies can use them in the course of law enforcement, but only with special authorization from the government.

Use of signal jammers is illegal in India, unless law enforcement agencies obtain special authorization to use signal jammers in law enforcement activities.

Regulator:

The Indian telecom industry is regulated by the Telecom Regulatory Authority of India (TRAI), which is responsible for spectrum allocation, tariff regulations and industry development policies.

India has one of the largest telecom markets in the world, with the following major telecom operators:

Reliance Jio

Reliance Jio is the largest telecom operator in the Indian market. The company is a subsidiary of Reliance Industries Limited (RIL), one of the largest conglomerates in India, led by Mukesh Ambani. Jio entered the market in 2016 with low-priced data plans and free voice services, sparking industry changes. Its aggressive pricing strategy forced competitors to lower their prices, leading to a significant increase in mobile internet penetration across India.

Here is an overview of the spectrum bands Jio uses for its operations:

Reliance Jio uses a combination of low-, mid-, and high-frequency bands for its 4G and 5G networks:

4G LTE: 850 MHz (Band 5), 1800 MHz (Band 3), and 2300 MHz (Band 40).
5G: 700 MHz (n28), 3300 MHz (n78), and 26 GHz (n258).

Bharti Airtel

Airtel is one of India's oldest telecommunications companies and the second largest mobile network operator in India. It was founded in 1995 by Sunil Bharti Mittal and is Jio's main competitor.

Frequency bands operated by Bharti Airtel:

2G (GSM): 900 MHz (Band 8), 1800 MHz (Band 3)
4G LTE: 900 MHz (Band 8), 1800 MHz (Band 3), 2100 MHz (Band 1), 2300 MHz (Band 40), 2500 MHz (Band 41)
5G（Airtel 5G Plus）：3300 MHz (n78) 、26 GHz (n258)

Vodafone Idea (Vi)

Vodafone India and Idea Cellular merged in 2018 to form Vodafone Idea (Vi), the third largest telecom operator in India.

Frequency bands Vi operates in:

Network	Frequency Bands	Purpose
2G GSM	900 MHz, 1800 MHz	Voice and SMS services in rural areas.
4G LTE	900 MHz, 1800 MHz, 2100 MHz, 2300 MHz, 2500 MHz	High-speed internet and data services.
5G (Planned)	3300 MHz, 26 GHz	5G services for urban and industrial applications.

Bharat Sanchar Nigam Limited (BSNL)

BSNL is a state-owned telecom company and one of the oldest providers of telecom services in India. Established in October 2000, BSNL plays an important role in providing telecom services to both rural and urban areas, especially in areas where private sector coverage is limited.

Frequency bands used by BSNL:

Technology	Frequency Bands	Purpose
2G GSM	900 MHz, 1800 MHz	Voice and SMS services, especially in rural areas.
3G UMTS	2100 MHz	Data services and voice in areas without 4G.
4G LTE	900 MHz, 1800 MHz	High-speed internet in limited locations (ongoing rollout).
5G (Planned)	BSNL aims to roll out 5G services using the 700 MHz, 3300 MHz, and 26 GHz bands starting in 2024.

MTNL (Mahanagar Telephone Nigam Limited)

MTNL is a state-owned company that provides services primarily in the Mumbai and New Delhi areas. Date of Establishment: April 1, 1986. MTNL was established to modernize telecommunication services in India's metropolitan areas and to serve as a counterpart to BSNL, which primarily operates in other regions. The government has announced plans to merge MTNL with BSNL to consolidate resources and improve operational efficiency. MTNL is currently a subsidiary of BSNL but has retained its independent brand.

Frequency bands in which MTNL operates:

Technology	Frequency Bands	Purpose
2G GSM	900 MHz, 1800 MHz	Basic voice and SMS services.
3G UMTS	2100 MHz	Mobile data services in Delhi and Mumbai.
4G (Planned)	MTNL is yet to roll out 4G services extensively, but spectrum in the 1800 MHz and 2100 MHz bands has been allocated for this purpose.

Other smaller operators

Tikona Infinet: Provides wireless broadband services, focusing on urban and corporate users.
RailWire: A broadband service brand of Indian Railways, providing internet services to urban and rural areas.
ACT Fibernet: Focus on fiber-optic Internet access services, covering some cities.

Network providers in India mainly use the following frequency bands:

850 MHz: JIO Reliance uses this frequency band for 4G and 5G technology.

900 MHz: Airtel, Vodafone Idea, BSNL and Tata Teleservices use this frequency band for 2G, 3G and 4G services.

1800 MHz: Airtel, JIO reliance, Vodafone Idea and Tata Teleservices use this frequency band for 2G, 3G and 4G services.

2100 MHz: Airtel, Vodafone Idea, BSNL and Tata Teleservices use this frequency band for 3G and 4G services.

2300 MHz: Airtel, JIO and Vodafone Idea Reliance use this frequency band for 4G services.

2500 MHz: JIO Reliance uses this frequency band for 4G services.

If you want to jam cell phone signals in India, it is essential to cover the frequency bands most commonly used by network providers. The 900 MHz, 1800 MHz, 2100 MHz, and 2300 MHz bands are the most commonly used bands by major Indian carriers. By blocking these bands, you stand a good chance of effectively jamming cell phone signals in the country.