Neet Aspirants Misses Exam due to political rally held at palace grounds

Many students in Bangalore miss thier long awaited Neet exams held on 21 -06-26 due to severe traffic block due to a political party rally held at palace grounds, many arrived city to participate in this rally in buses,cars and other vehicles resulting a severe traffic block at major junction which made students trap in traffic block resulting in late arrival at Exam centres...who is responsible for this issue, how do these politicians justify this loss of one year of a student ....