India's benchmark indexes are poised to open lower on Friday, and the rupee is likely to weaken after the country's defence ministry said that military installations were targeted by drones and missiles originating from Pakistan.

The rupee opened 14 paise down on May 9 after a night of drone and missile strikes as India and Pakistan conflict worsens. The currency opened at 85.85 against the dollar after ending the previous session at 85.71, its worst day in almost three years.

On Thursday, the local legal tender had dropped sharply by 89 paise to close at 85.72 after clocking a 19 paise stronger open at 84.64.