Admittedly, India is known more for producing sitar masters than blazing guitarists, but the country has made a bid to storm the six-string section of the Guinness Book of World Records, gathering 1,730 players for a mass strum-along to Bob Dylan’s “Knocking on Heaven’s Door.” If the effort, which took place last Friday on a remote hilltop in northeast India, is certified by the Guinness folk, the current record holders?1,721 metal-mongering Midwesterners who gathered last year in Kansas City to jam on “Smoke on the Water”?will have to seek out another path to fame. ?David Sprague