Reuters Market Eye - Shares in Pratibha Industries fall 5.8 percent.
Rating agency Crisil downgrades its long-term rating on Pratibha to BB + negative from BBB negative.
The rating agency also downgrades short-term rating to A4+ from A3+.
The rating downgrade reflects the expectation of continuing pressure on the company's financial risk profile, according to Crisil.
(Reporting by Indulal PM)