Shares of Dewan Housing Finance Corporation plunged over 18 per cent on Thursday as domestic rating agencies ICRA and Crisil downgraded rating on Rs 850 crore worth of commercial paper of DHFL.

The scrip tumbled 14.96 per cent to Rs 94.90 -- its 52-week low -- on the BSE.

At NSE, shares cracked 18.29 per cent to hit its one year low of Rs 91.30.

ICRA and Crisil Wednesday downgraded rating on Rs 850 crore worth of commercial paper of Dewan Housing Finance Corporation Ltd (DHFL) to ‘default’ from ‘A4’ due to the mortgage lender’s deteriorating liquidity condition.

The rating of the company, which defaulted on a debt repayment earlier this week, has been removed from watch with negative implications by both the rating agencies.

Crisil, in a note, said the downgrade to ‘default’ or ‘D’ reflects delays in debt servicing by DHFL on some of its non-convertible debentures (NCDs) because of inadequate liquidity. The payments were due on June 4, 2019.

The NCDs are not rated by Crisil.

In a separate note, Icra said, “the rating revision factors in further deterioration in company’s liquidity profile and delays in meeting scheduled debt obligation on June 04, 2019.”

Equity markets were closed on Wednesday for Id-Ul-Fitr.