The pair of Raga using both of 'Nishad' Swar is:

Question

Accepted Answer

Option 4, which includes the ragas Khamaj and Alhaiya Bilawal, is the correct answer because both of these ragas utilize both forms of the 'Nishad' swar, namely Shuddha Nishad and Komal Nishad, in their compositions.

1. **Explanation for Option 4:**
   - **Khamaj:** This raga belongs to the Khamaj Thaat and is known for its romantic and playful nature. It typically uses the Komal Nishad in its descent (Avaroha) while employing the Shuddha Nishad in its ascent (Aroha), making it versatile and expressive.
   - **Alhaiya Bilawal:** This raga is a variant of the Bilawal Thaat and is characterized by its use of both Nishads. It often employs the Shuddha Nishad prominently but can incorporate the Komal Nishad for embellishments and specific phrases, adding depth to its melodic structure.

2. **Explanation for why other options are incorrect:**
   - **Option 1 (Bageshri, Bhimpalasi):** Both Bageshri and Bhimpalasi primarily use the Komal Nishad. They do not typically incorporate the Shuddha Nishad, which is why this option is incorrect.
   - **Option 2 (Vrindavani, Bhupali):** Vrindavani Sarang uses the Shuddha Nishad, while Bhupali does not use Nishad at all, as it is a pentatonic raga (Audav raga) that omits both Nishad and Gandhar. Therefore, this option does not fit the criteria.
   - **Option 3 (Des, Yaman):** Des uses the Komal Nishad in its descent, while Yaman uses the Shuddha Nishad throughout. However, Yaman does not incorporate the Komal Nishad, making this option incorrect.

By focusing on the specific use of both Nishads, Option 4 stands out as the correct choice, aligning with the characteristics of Khamaj and Alhaiya Bilawal.