Tailor-to-the-stars Mohan “Mike” Ramchandani — who has outfitted Rudy Giuliani, Ed Koch and Knick legends Walt Frazier and Patrick Ewing — was hauled in handcuffs into a Manhattan courtroom yesterday for failing to pay nearly $3 million in sales, personal and corporate taxes. Ramchandani’s self-described “mistakes” will eventually put him in...