Which industrialist, popularly called the Steel Man of India, served as a former chief of TISCO now known as Tata Steel?

Introduction / Context:
In Indian industrial history, certain business leaders receive special titles that reflect their major contributions in a particular sector. The phrase Steel Man of India has been used for a few figures connected with the growth of the steel industry, especially with the Tata group and its flagship company TISCO, now called Tata Steel. This question focuses on the modern industrialist and former chief of TISCO who was widely honoured with that title in news reports and tributes.

Given Data / Assumptions:

• The person is a prominent industrialist associated with TISCO or Tata Steel.
• He was popularly called the Steel Man of India in contemporary media.
• The options list several well known business leaders from the Tata group and other industrial houses.
• The learner is expected to connect the title with the correct individual among them.

Concept / Approach:
The concept tested is accurate recall of epithets linked with corporate leaders and their main companies. Jamshed J Irani worked for decades in Tata Steel and served as its managing director. Thanks to his technical expertise and leadership, he played a key role in modernising the company and the wider steel sector. Because of this strong association, many articles referred to him as the Steel Man of India. While other Tata leaders are also important, this particular combination of title and post fits Jamshed J Irani best.

Step-by-Step Solution:
Step 1: Note that the question mentions both the title Steel Man of India and the role of former chief of TISCO or Tata Steel. Step 2: Recall that Jamshed J Irani was managing director of Tata Steel and an internationally recognised steel technologist. Step 3: Examine the options and identify his name among other famous industrialists such as J R D Tata and Ratan Tata. Step 4: Recognise that although J R D Tata and Ratan Tata led the Tata group, the specific steel sector title Steel Man of India is used mainly for Jamshed J Irani in modern references. Step 5: Select Jamshed J Irani as the correct answer.

Verification / Alternative check:
To verify, think of news reports published after his retirement and later after his passing, which often highlighted his role in transforming Tata Steel and called him the Steel Man of India. Industrial awards and honours that he received also mention his contributions to steelmaking. While early industrial pioneers such as J N Tata are sometimes linked with similar phrases, this question adds the clue former chief of TISCO, which points clearly to Jamshed J Irani in the context of modern corporate management.

Why Other Options Are Wrong:
J R D Tata was a legendary chairman of the Tata group and is associated with aviation and industrial expansion in general rather than specifically with steel technology. Ratan Tata is another prominent chairman whose fame extends across many sectors, but he is not the individual most frequently described with the Steel Man of India title in relation to TISCO leadership. Ghanshyam Das Birla and Narayana Murthy are major business figures in other groups and industries and do not fit the clues given in the question.

Common Pitfalls:
Students may confuse early founders and later professional managers within large industrial houses and may assume that any Tata leader could be called Steel Man of India. The key is to read all clues together and link the phrase with the person whose career was most directly focused on steel production and who headed Tata Steel as a specialist. Learning a short timeline of leading figures in each major company helps avoid such mix ups.

Final Answer:
The industrialist popularly called the Steel Man of India and former chief of TISCO now Tata Steel is Jamshed J Irani.