In this personality and achievement based odd one out question, select the name that does not belong to the group of Indian scientists and science related achievers among Bismillah Khan, C. V. Raman, Homi Jehangir Bhabha and Vikram Sarabhai.

Introduction / Context:
This general knowledge odd one out question tests your awareness of famous Indian personalities and their fields of contribution. Three of the names belong to well known scientists or science related achievers, while one is a celebrated musician. Recognizing the domain of each person is essential to answering the question correctly.

Given Data / Assumptions:

• The given names are Bismillah Khan, C. V. Raman, Homi Jehangir Bhabha and Vikram Sarabhai.
• We assume standard historical and biographical knowledge of these personalities.
• The classification of each person by primary field of contribution is the key.

Concept / Approach:
The approach is to recall the main area in which each person is famous. C. V. Raman, Homi Jehangir Bhabha and Vikram Sarabhai are all closely associated with science, especially physics, nuclear research and space research in India. Bismillah Khan, on the other hand, is known for his contribution to Indian classical music, particularly the shehnai. Therefore, Bismillah Khan is the odd one out by field of work.

Step-by-Step Solution:
Step 1: C. V. Raman was a renowned Indian physicist who received the Nobel Prize in Physics for the Raman effect.Step 2: Homi Jehangir Bhabha was a pioneering Indian nuclear physicist, often regarded as the father of the Indian nuclear program.Step 3: Vikram Sarabhai was an eminent Indian scientist and is widely recognized as the father of the Indian space program.Step 4: Bismillah Khan was a legendary Indian classical musician, famous for popularizing the shehnai and contributing greatly to Indian music, not to science.Step 5: Since C. V. Raman, Homi Jehangir Bhabha and Vikram Sarabhai are all known for their scientific contributions, while Bismillah Khan is known for his contribution to music, Bismillah Khan is the odd one out.
Verification / Alternative check:
You can verify this grouping by recalling the institutions and awards associated with each person. Research centers, scientific awards and space missions frequently mention Raman, Bhabha and Sarabhai. Bismillah Khan, however, is referenced in the context of concerts, music awards and cultural events. This confirms that his domain is music, not science.

Why Other Options Are Wrong:
C. V. Raman is not the odd one out because he is a scientist and belongs with Bhabha and Sarabhai in the science group.
Homi Jehangir Bhabha is also firmly in the scientist category, making him part of the majority group.
Vikram Sarabhai is another noted scientist and architect of the Indian space program, so he is clearly not unique here.

Common Pitfalls:
A candidate who is not familiar with Indian personalities might try to guess based on name familiarity. Another mistake is confusing fields, for example mistakenly thinking that one of the scientists belongs to a different domain. To improve accuracy, aspirants should regularly review important Indian personalities and categorize them by domain such as politics, science, sports and arts.

Final Answer:
The only personality who is a musician rather than a scientist is Bismillah Khan, so Bismillah Khan is the odd one out.