New Delhi, Nov. 12 -- Rising retail inflation could weaken household purchasing power and constrain discretionary spending, including housing expenditure, while increasing the possibility of further monetary tightening by the Reserve Bank of India (RBI), industry bodies said on Thursday, following the acceleration in consumer price inflation to 6.09 per cent in October.

Vivek Rathi, National Director, Research at Knight Frank India, said the sharp increase in inflation was broadly anticipated due to erratic climatic conditions during the year, which pushed up food prices and spilt over into dependent sectors such as restaurants and hospitality.

"The inflationary pressures have also spilt over into dependent sectors such as restaurants a...