The songs composed on the basis of Hindi songs are called in 'Ravindra Sangeet' as:

Question

Accepted Answer

The correct option is 2:
Bhanga Gaan
'Bhanga Gaan' is the historically correct term in the study of Rabindra Sangeet for songs where Rabindranath Tagore composed new Bengali lyrics to a tune that was "broken" or adapted from an existing classical or folk melody. The majority of these adaptations were based on North Indian classical genres like Dhrupad, Khayal, Tappa, and Bhajan, which are fundamentally part of the Hindi/Hindustani musical tradition. Tagore skillfully restructured the melodic contours and rhythmic patterns of these original compositions to fit his Bengali poetry and musical vision, thus giving rise to the distinct category of 'Bhanga Gaan' (Adapted Songs). This demonstrates Tagore's deep engagement with and assimilation of the wider Indian musical landscape.

The incorrect option is 1:
Dhala Gaan is not a recognized technical or categorical term in the established taxonomy of Rabindra Sangeet. The primary classifications of Tagore's compositions are either based on the thematic *Parjay* (like Puja, Prem, Prakriti) or on the structural origin of the melody, where 'Bhanga Gaan' is the accepted term for adaptations. Therefore, using 'Dhala Gaan' as a substitute for 'Adapted Songs' is a factual inaccuracy in the context of musicology related to Tagore's works.

The incorrect option is 3:
Sola Gaan also does not correspond to any known formal classification used to categorize the 2230 songs of Rabindra Sangeet. The system of categorizing Tagore's music is well-documented and primarily relies on a division into *Parjay* (sections) and the distinction between *Shuddha Gaan* (original compositions) and *Bhanga Gaan* (adapted compositions). To identify songs based on Hindi tunes, a specific and well-established category is required, which 'Sola Gaan' is not.

The incorrect option is 4:
Anand Gaan, translating to 'songs of bliss' or 'joyous songs,' is a descriptive term related to the emotional content or *rasa* of a song. While a 'Bhanga Gaan' may express *Ananda* (joy), the term describes the mood or sentiment, not the actual compositional method, which is the question's focus. The term 'Bhanga Gaan' specifically addresses the song's origin as an adaptation, whereas 'Anand Gaan' is a general thematic descriptor that can apply to songs of many different compositional origins.