Helicopters would be pressed into service at Nasik to maintain vigil from above, he said.
Similarly, barricades would be set up at the ground level to prevent stampede, he said.
The barricades would also help in controlling the crowds and maintaining a vigil on people coming and leaving the place, he said.
In Mumbai, people have been asked to be alert.
A random search of parked vehicles was also being carried out at several places, he said.