Drummer also talks band's one-off reunion and Robert Plant-less side project
'Pieces of You' singer rocks out to "Whole Lotta Love" in Phoenix
Led Zeppelin release tracks recorded in Mumbai in 1972 with sarangi maestro Ustad Sultan Khan and other Indian artists
On the anniversary of the 1975 LP, the guitarist reflects on his roots
"Brandy and Coke" will appear on the upcoming deluxe reissue of 'Physical Graffiti'