Tata Consultancy Services (TCS) is an Indian multinational technology company specializing in information technology (IT) services and consulting. Headquartered in Mumbai, India, it is a part of the Tata Group, one of India’s largest and oldest conglomerates. Founded in 1968 by Tata Sons Limited, TCS initially provided punched card services to its sister company Tata Steel and later expanded into software development and IT services. Today, it is a global leader in the IT industry, operating in 150 locations across 50 countries.
TCS offers a wide range of services, including IT infrastructure, consulting, business process outsourcing, cloud services, cybersecurity, data analytics, and digital transformation solutions. It serves various industries such as banking, financial services, healthcare, retail, manufacturing, telecommunications, and more. The company is known for its software products like TCS BaNCS (a financial services platform), Ignio (an AI-driven enterprise software), and TCS MasterCraft (an automation suite), among others.
As of the fiscal year ending March 31, 2024, TCS reported consolidated revenues of US$29.1 billion and employs over 601,000 consultants worldwide, making it one of the largest employers in the IT sector. It is the second-largest Indian company by market capitalization and became the first Indian IT firm to reach a market cap of US$200 billion in September 2021. TCS is publicly listed on the Bombay Stock Exchange (BSE) and National Stock Exchange (NSE) in India, following its initial public offering in August 2004.
The company has a strong global presence, with a reputation for innovation, sustainability, and client-centric solutions. It has been recognized as a leader in the IT services industry, consistently ranking high in customer satisfaction surveys and sustainability indices like the MSCI Global Sustainability Index and FTSE4Good Emerging Index. TCS is also known for its proactive stance on climate change and community engagement, aligning with the Tata Group’s ethos of social responsibility.
* Full Name : TCS (Tata Consultancy Services Limited)
* Founded : 1968 by Tata Sons Limited
* Headquarters : Mumbai, Maharashtra, India
* Parent Company : Tata Group (a major Indian multinational conglomerate)
* CEO & MD (as of 2025) : K. Krithivasan
* Number of Employees : Over 600,000 (making it one of the largest employers in the IT sector globally)
* Presence : Operates in over 50 countries
The recruitment process for Tata Consultancy Services (TCS) varies slightly depending on the role (e.g., freshers vs. experienced hires, TCS Ninja vs. TCS Digital) and the mode of hiring (on-campus or off-campus). However, it generally follows a structured, multi-stage approach designed to assess candidates’ technical skills, aptitude, and cultural fit. Below is an overview of the typical TCS recruitment process, focusing primarily on the widely known TCS National Qualifier Test (NQT) process for freshers, as it’s one of the most common entry points.
Shortlisted candidates face a series of interviews, typically conducted virtually or in-person, depending on the drive. The process usually includes:
This process reflects TCS’s commitment to hiring talent that aligns with its global standards. For the most current details, candidates should refer to the TCS careers page or NextStep Portal, as patterns and timelines can evolve (e.g., the 2025 NQT pattern was recently updated).
|
Interpreter |
Compiler |
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Interpreter translates just one statement of the program at a time into machine code. |
Compiler scans the entire program and translates the whole of it into machine code at once. |
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An interpreter takes very less time to analyze the source code. However, the overall time to execute the process is much slower. |
A compiler takes a lot of time to analyze the source code. However, the overall time taken to execute the process is much faster. |
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An interpreter does not generate an intermediary code. Hence, an interpreter is highly efficient in terms of its memory. |
A compiler always generates an intermediary object code. It will need further linking. Hence more memory is needed. |
| Join | Union |
| It integrated information into new columns. | It integrates data to create new rows. |
| It retrieves matched records from two or more tables. | It combines the results of two separate select statements. |
| Different datatypes from relevant columns might be used. | The data types of the selected relevant columns should be the same. |
#include <stdio.h>
// defining macros
#define TEXT "Hello"
#define EVEN 2
#define SUMMATION (8 + 2)
int main()
{
printf("String: %s\n", TEXT);
printf("First Even Number: %d\n", EVEN);
printf("Summation: 8+2=%d\n", SUMMATION);
return 0;
}(num > 0).class IB {
// Function for reversing the number
public static int revNum(int num)
{
// Variable which stores the
// required reverse number
int rev = 0;
// Traversing the number digit by digit
while (1) {
if(num <= 0)
break;
// Attach the last digit of num
// as the next digit of rev
rev = rev * 10 + num % 10;
// Drop the last digit of num
num = num / 10;
}
// Return the resultant reverse number
return rev;
}
public static void main(String[] args)
{
if (args.length > 0) {
// Obtain the command line argument and
// Convert it to integer type from string type
int number = Integer.parseInt(args[0]);
System.out.println(revNum(number));
}
else
System.out.println("No command line arguments found.");
}
}virtual void fun()=0; malloc()/calloc() and then forget to deallocate it with the delete() or delete[] operators or the free() function. In C++, one of the most common causes of memory leakage is the use of the incorrect delete operator.delete [] operator should be used to free an array of data values, whereas the delete operator should be used to clear a single allocated memory space.