The correct answer is option 4, Srinagar. Srinagar is located in the northernmost part of India and is close to the Himalayan range. Due to its location, it experiences a significant variation in the angle at which the Sun`s rays fall on the city throughout the year.

During summer, the Sun`s rays are more inclined and the city receives more direct sunlight. However, during winter, the Sun`s rays are slanted at a lower angle, resulting in reduced direct sunlight. This slanted angle prevents Srinagar from receiving vertical rays of sunlight throughout the year.

In contrast, cities like Chennai, Mumbai, and Kolkata are located closer to the equator and experience less variation in the angle of the Sun`s rays. Therefore, these cities receive relatively more vertical rays of sunlight throughout the year compared to Srinagar.

It is important to note that while the provided answer is generally correct, it does not take into account unique weather patterns or specific geographical features that may result in occasional vertical rays of sunlight in Srinagar.