In the Mahatma Gandhi (New) series of Indian banknotes introduced recently, what is the predominant colour of the ₹50 banknote?

Introduction / Context:
The Reserve Bank of India (RBI) introduced a new series of banknotes called the Mahatma Gandhi (New) series with updated designs, colours and security features. Each denomination in this series has a distinctive colour and theme to make identification easier for the public. This question tests whether you remember the main colour of the ₹50 note in the new series, which is a frequent point of interest in general awareness sections of exams.

Given Data / Assumptions:

- The focus is on the Mahatma Gandhi (New) series of banknotes.- The denomination in question is the ₹50 note.- Options list several colours that appear on different denominations.- We assume awareness of recent currency redesigns in India.

Concept / Approach:
In the Mahatma Gandhi (New) series, the ₹50 banknote has a predominant fluorescent blue colour. This distinct shade helps people distinguish it from other denominations, such as the magenta coloured ₹2,000 note or the stone grey styled ₹500 note. The design also features motifs related to Indian heritage on the reverse side, but the key identifying factor for this question is its bright blue tone. Therefore, fluorescent blue is the correct answer.

Step-by-Step Solution:
1. Recall that the RBI introduced new designs and colours for denominations like ₹50, ₹200, ₹500 and ₹2,000 in the Mahatma Gandhi (New) series.2. Visualise the ₹50 note, which is smaller in size and has a vivid blue appearance compared to other notes.3. Remember that magenta is associated with the ₹2,000 note and stone grey is associated with the ₹500 note in the same series.4. Note that bright red and olive green do not match the standard description of the new ₹50 note.5. Choose fluorescent blue as the predominant colour of the ₹50 banknote in the Mahatma Gandhi (New) series.

Verification / Alternative check:
Photographs and descriptions of the Mahatma Gandhi (New) series on the RBI's official site and in newspapers show the ₹50 note in fluorescent blue. Educational and exam preparation materials also emphasise this colour difference to help candidates quickly identify denominations. These sources consistently confirm that fluorescent blue is the standard descriptor for the new ₹50 note colour.

Why Other Options Are Wrong:
- Magenta: used mainly for the ₹2,000 denomination in the new series, not for ₹50.- Stone grey: generally associated with the newer ₹500 note.- Bright red: not the standard dominant colour for the ₹50 note in the new series.- Olive green: closer to shades used in older notes or other denominations, not the characteristic fluorescent blue of the new ₹50 note.

Common Pitfalls:
Some candidates mix up colours among different new notes because several denominations were introduced or redesigned around the same period. Another common mistake is relying on memory of old series notes, which had different colour schemes. To avoid such confusion, associate each denomination with its new colour: for example, ₹2,000 with magenta, ₹500 with stone grey and ₹50 with fluorescent blue. This simple mapping will make currency related questions much easier to answer under exam conditions.

Final Answer:
In the Mahatma Gandhi (New) series, the ₹50 banknote is predominantly fluorescent blue in colour.