1. Sambhar Lake: This is a saltwater lake located near Jaipur city in Rajasthan state of India. This lake is situated at an altitude of 1,200 feet above sea level.

2. Sambhar Salt Lake is the largest brackish lake in India and the source of most of Rajasthan's salt production.

3. It produces 196,000 tons of clean salt every year.

4. Which is about 9% of India's salt production.

Govind Dev Temple, Jaipur and Madan Mohan Temple, Karauli are related to Gaudiya sect. The historic Govind Dev Ji temple of Gaudiya Vaishnavism tradition is situated in City Palace of Jaipur in Rajasthan. The temple is dedicated to Govind Dev Ji (Krishna) and his consort Radha.

The first scientific division of the Rajput painting style was done by Anand Kumar Swami. He wrote a book named 'Rajput Painting' in 1916.

Hence, the correct answer is "Flute". The guitar is of Western origin, has 6 strings, is plucked or strummed, and is not used in Indian music.