With Valentine's Day falling on a Friday, travel is picking up as people look for quick getaways.
On Monday, the agitators blocked NH-11 and continued their blockade from previous days at other places. Since the agitation began on Friday, it has affected the movement of more than 250 trains.
The SP said the protesters also pelted stones, injuring four jawans, adding that police had to lob tear gas shells to disperse the crowd.