As the 50 days’ grace period sought by Prime Minister Narendra Modi to tide over the problems arising out of demonetisation passes with few signs of improvement in the supply of cash, economists are getting concerned over the short-term impact on GDP growth. “Based on the trends till November, both manufacturing and services are not showing strong growth. The first half of the 2016-17 fiscal was slower than the corresponding period last year,” says Shashank Bhide, Director, Madras Institute of Development Studies. “The second half will obviously be affected by demonetisation. The timing of the revival is harder to predict right now as it depends on remonetisation.”