I want to know the name of a trusted tour operator in Kolkata who undertakes Panch Kedar Tour Package.?

I want to visit Panch Kedar with a Tour Operator from Kolkata. Problem is I couldn't find any trusted Tour operator from Kolkata who undertakes such package.I 'm getting plenty of them but not from Kolkata. Please help me with the name & address of a trusted Tour operator in Kolkata who has Panch Kedar Packaege.