Explanation:

- Option 1: Ankahee

- Pandit Bhimsen Joshi received the National Film Award for Best Male Playback Singer for his soulful rendition in the 1985 Hindi movie "Ankahee."

- The film is known for its beautiful classical music.

- Option 2: Tansen

- Tansen is a reference to the legendary musician from Emperor Akbar’s court, but not related to Pandit Bhimsen Joshi's filmography or awards in 1985.

- Option 3: Sandhya Raga

- "Sandhya Raga" was not associated with Bhimsen Joshi's awards history.

- Option 4: Basant Bahar

- "Basant Bahar" is another classical music movie but was released in 1956 and is not connected to Joshi’s National Film Award in 1985.

Correct Answer: Option 1 - Ankahee