Maruti Suzuki India Ltd. fell the most in a month after a fire at a component supplier disrupted supplies prompting the unit of Suzuki Motor Corp. to suspend production at both its factories. Shares of Maruti declined 1.8 percent, the most since April 28, to 4,071.75 rupees at the close in Mumbai. The benchmark S&P BSE Sensex advanced 0.3 percent.