ah karu LAW

Pole star. Wikipidia ch aah likhya ehde bare A pole star is a visible star, preferably a prominent one, that is approximately aligned with the Earth's axis of rotation; that is, a star whose apparent position is close to one of the celestial poles, and which lies approximately directly overhead when viewed from the Earth's North Pole or South Pole. A similar concept also applies to other planets than the Earth. In practice, the term pole star usually refers to Polaris, which is the current northern pole star, also known as the North Star.

The south celestial pole currently lacks a bright star like Polaris to mark its position. At present, the naked-eye star nearest to this imaginary point is the faint Sigma Octantis, which is sometimes known as the South Star.

While other stars' apparent positions in the sky change throughout the night, as they appear to rotate around the celestial poles, pole stars' apparent positions remain virtually fixed. This makes them especially useful in celestial navigation: they are a dependable indicator of the direction toward the respective geographic pole although not exact; they are virtually fixed, and their angle of elevation can also be used to determine latitude.

And eh v Dhruv (ध्रुव) is a devotee of God Vishnu according to Hindu mythology. Dhruv was the son of Uttānapāda.[1] His tale is recorded in the Vishnu Purana and the Bhagavata Purana.
Identification with Pole Star
North Pole Star is called Dhruva Nakshatra in Sanskrit literature. This identification is said to be coming from Dhruva. This is because of the boon he receives from Vishnu