[1] Born in Thiruvananthapuram, Kerala, she found interest in cricket while studying at Cotton Hill Girls Higher Secondary School.

[6] Sobhana made her List A debut for Kerala on 28 November 2006, against Karnataka in the 2006–07 Senior Women's One Day League.

[11] In February 2024, she was signed by the Royal Challengers Bangalore at a price of ₹10 lakh to play for them in the 2023 Women's Premier League.

[12] She was the leading wicket-taker for Puducherry in the 2023–24 Women's Senior One Day Trophy, picking up 16 wickets in seven matches.

[18] In April 2024, Sobhana earned her maiden call-up to the India women's cricket team for their tour to Bangladesh.