IN the class war that continuously ages between the Greater Kailash grand dames and the upbeat have money-will-spend Punjabi Bagh prima donnas, there is a new state-of-the-art weapon: the Italian pizza. It all began as a search for that allelusive golden fleece: a snob value to live by. Upper crust memsahibs shuddered delicately as rampaging tradesmen flashing thick gold chains .. bulging wallets stormed their lealously-guarded preserves--Bukhara, The Grill Room, Dum Pukht--stri-dently demanding sweetcorn soup, mittha kam please! The cognoscenti were in an uproar. Nothing seemed exclusive any- more. Where could self-respecting gourmand snobs be seen without being socially compromised?