Single-use plastic ban sees paper stocks rally. Are the gains sustainable?

It has been a dream run for the paper stocks in the last one month as the scrips have rallied up to 85 per cent. The biggest reason behind the rally, as per experts, is the government's announcement to ban single-use plastics to curb pollution. The announcement has been the shot in the arm for most paper stocks. 

Consider this. Last week, as many as 14 stocks from the sector gained 10 per cent or above as compared to a modest 0.64 per cent gain in the benchmark S&P BSE Sensex. Balkrishna Paper Mills, up 29 per cent, was the