HDFC Chairman Deepak Parekh today pushed for a one-time restructuring of stressed real estate accounts and relaxation in classification of NPA norms to 180 days from 90 days to help the sector. While addressing representatives from the real estate sector through video conferencing, Parekh said unless the stressed accounts are restructured, financial institutions will find it difficult to provide additional liquidity to the sector. He said recommendation has already been made to the RBI for the restructuring following which real estate developers can be given additional money.