Chandigarh, June 2 -- In a fresh email , an unknown person has threatened to blow up the municipal offices, mayor's office, railway station and the district courts complex in the city between June 3 and June 5. The email comes ahead of the 42nd anniversary of Operation Bluestar on June 6 Police said that security checks have been heightened at the buildings and thepublic has nothing to be afraid about. Police will remain alert with the anniversary of Operation Blue Star this week. Further, mayor Saurabh Joshi also issued a statement saying that he will continue to serve the city with dedication and he has asked the UT police to investigate the matter. htc...