MORE than a year after it stormed to power, with the BJP in tow, the Shiv Sena suffered its most serious blow this fortnight. Bal Thackeray's nephew, Raj, noted as much for his quick rise in the party as his resemblance in looks and style to the party supremo, was defending himself against charges of conspiracy in extortion and murder, brought on by the victim's wife. This is the strongest case against the Thackeray clan, and it's clear the party will have to pay a heavy price for getting entangled in questionable deals.