Indian Mujahideen terrorist Yasin Bhatkal’s revelations about possible attacks seem to be weighing heavy on the minds of officials in Goa who on Thursday issued an advisory asking people to remain alert during the upcoming Ganesh Chaturthi festivities. For the 11-day festival beginning Sep 9, the district administration in South Goa has made it compulsory for public pandals (halls) to intal surveillance cameras.