More than 2 million people in India are employed in call centers, putting the country just behind the Philippines among offshore call centers. There are more than 2,300 such centers in India — a 3.68% increase since 2023. Of these, nearly 95% are single-owner operations, with the rest of the centers part of larger brands. Tamil Nadu, Maharashtra, and Uttar Pradesh have the most call centers.
Generally, the average age of agents is between 20-25 years in regions such as Delhi NCR, reflecting the appeal of these roles among young, college-educated people seeking quick employment and income. Generally, this demographic is more open to technological advances that are swiftly reshaping the call center industry. That technology includes artificial intelligence (AI)-powered accent softening, which can help agents better communicate with English-speaking customers.
What’s an Accent?
An accent is basically how someone pronounces a language. It can reveal quite a bit about the speaker, including their geographical, socioeconomic, and ethnic background.
While you may think it’s “other people” who have accents, you have one, too. For example, if you’re from Boston, think about how you must sound to someone in New Orleans.
The Top Call Centers in India
As of 2025, the companies below are some of the leading call centers in India. They are noted for their technological integration, reliability, and diversity of service offerings.
Genpact
New York-based Genpact provides process management and technological services and specializes in digital assistance as well as accounting and customer care, including call centers. The company, founded in 1997, has more than 125,000 employees, with clients including the insurance, high-tech, healthcare, and finance industries. The multinational company has more than 35 locations and was launched in India, the Philippines, India, and China.
WNS Global Services
WNS is a leading global provider of customized business process management services. Its comprehensive outsourcing solutions include customer service, analytics, and finance and accounting. It uses a deep industry understanding and advanced technologies to deliver efficient and high-quality call center services.
3i Infotech
The global company is largely known for its IT solutions and services, including infrastructure management, software applications, and business-process outsourcing. Mumbai, India-based 3i Infotech also provides call center services across multiple sectors, catering to the insurance, financial services, and banking sectors.
Tata Consultancy Services (TCI) BPO
TCS BPO, a part of Tata Group, offers a range of business process outsourcing and customer support services including call centers, software development, technology consulting, and software development. Headquartered in Mumbai, India, and founded in 1968, TCS has grown to become a top multinational technology company with operations in 150 locations across 46 countries.
IBM Daksh
An IBM subsidiary, this company provides technical support and customer care services globally. Founded in 2000, IBM acquired Daksh to enhance its business transformation capabilities and grow its presence in global BPO markets and India. IBM Daksh ultimately became a major player in the BPO industry with a number of service delivery centers in India.
Flatworld Solutions
Since 2004, Flatworld has provided a wide variety of services including digital marketing, data entry, and call center solutions. With more than 3,000 employees, Flatworld targets finance, software, engineering, insurance, logistics, and mortgage industries. Established in 2002, Flatworld Solutions has a number of locations, including in India and the Philippines.
Aidey
With a focus on startups, SaaS companies, and e-commerce, Aidey provides 24/7 customer support through a number of channels, including call centers. The 12-year-old company, with locations in India as well as Canada, UK, and Tel Aviv, has more than 100 employees and features a highly skilled workforce and 24/7 phone, chat, and email support for businesses.
TechSpeed
This 23-year-old company provides AI-based call center solutions with a strong focus on startups. With more than 250 employees, U.S.-based TechSpeed also has a presence in Pune, India. It’s run by a woman—an industry rarity—and offers its clients 24/7 support services.
Firstsource Solutions
Firstsource is a leading provider of call center management services as well as healthcare, customer management, and banking solutions. To deliver top-shelf customer experiences, Firstsource focuses on using innovative processes and technologies to meet their clients’ evolving needs. To optimize processes and improve operational efficiency and services delivery, the company employs automation and analytics.
Startek
Startek is a global provider of customer experience management solutions, specializing in call center services across industries such as healthcare, telecom, financial services, and retail. Committed to delivering seamless customer interactions, Startek leverages cutting-edge technology, analytics, and automation to enhance operational efficiency. By focusing on innovation and human-centric engagement, the company helps brands build strong customer relationships while optimizing service delivery.
India’s Call Centers, Accent Bias, and Tomato.ai’s Solution
India is a top country for offshore call centers, supported by favorable economic conditions and a vast workforce. Call center work there is usually done overnight, accommodating time zones in the United States, the United Kingdom, and Australia, where English is the primary language. That means that agents must be fluent in English.
Despite such fluency, these agents may still encounter callers who commonly, and often subconsciously, treat them rudely due to their accent. The fact is that people tend to favor their own accent over English variations. Accent bias is a pervasive problem, as for many offshore agents, English is their second, third, or even fourth language.
Enter Tomato.ai’s solution. Our accent reduction solution is upending an industry already undergoing transformational change, largely due to artificial intelligence. Our AI accent neutralization filter transforms words that sound to the caller — in real time— like a native speaker’s language. The result is better call center performance and growth, and more-satisfied customer experiences.