The Indian Space Research Organisation has unveiled its Human Space Flight Centre in which Indian city?

Introduction / Context:
India has taken major steps towards launching its own crewed space missions. For this purpose, the Indian Space Research Organisation created a specialised Human Space Flight Centre to coordinate activities related to astronaut training, crew module development and life support systems. This question tests knowledge of the city where this important centre was unveiled.

Given Data / Assumptions:
- The organisation mentioned is ISRO, the Indian Space Research Organisation.
- The facility is a Human Space Flight Centre dedicated to crewed missions.
- The options are Bengaluru, Hyderabad, Kolkata and Pune.
- Students must choose the city that actually hosts this centre.

Concept / Approach:
ISRO has long been headquartered in Bengaluru, and many of its critical centres, laboratories and mission control rooms are located in and around this city. When the Human Space Flight Centre was announced in connection with the Gaganyaan mission and future crewed flights, it was natural that it would be set up in Bengaluru where key infrastructure and expertise already exist. Therefore, remembering ISRO's main base makes it easier to identify the correct option.

Step-by-Step Solution:
Step 1: Recall that ISRO headquarters and several major centres are in Bengaluru, Karnataka. Step 2: Recognise that the Human Space Flight Centre handles complex work such as astronaut training facilities, mission planning and crew related systems. Step 3: Remember news reports that specifically mentioned the unveiling of this centre in Bengaluru. Step 4: Compare this with other options and select Bengaluru as the correct city.

Verification / Alternative check:
Verification can be done by linking this question with the Gaganyaan human spaceflight programme. When the project was announced, coverage showed ISRO setting up the Human Space Flight Centre in Bengaluru and outlining its role and responsibilities. Hyderabad, Kolkata and Pune play important roles in other fields, but they were not named as hosts of this particular ISRO centre in official announcements.

Why Other Options Are Wrong:
- Hyderabad: Hosts other scientific and defence institutions but not the ISRO Human Space Flight Centre.
- Kolkata: A major metropolitan city, yet not the location chosen for this ISRO facility.
- Pune: Important for research and education, but again not the city where the Human Space Flight Centre was unveiled.

Common Pitfalls:
A common error is to answer based on familiarity with a city as a general technology hub rather than focusing on where ISRO actually concentrates its facilities. Some might also confuse this centre with other space related facilities across India. To avoid such mistakes, remember that Bengaluru is essentially the main hub of ISRO, and that the Human Space Flight Centre is part of that cluster.

Final Answer:
The Human Space Flight Centre of ISRO has been unveiled in Bengaluru.