Rookie Krishnamurthy Siddharth hit his maiden first class hundred, an unbeaten 104, to guide Karnataka to 263 for four against Mumbai on day one of the Elite Group A Ranji Trophy Cricket match in Belagavi, Karnataka on Tuesday.

In Ranchi, speedster Varun Aaron grabbed a five-wicket haul as Jharkhand bundled out Rajasthan for 100 on the opening day. In response, Jharkhand were 92 for 5 at stumps, trailing Rajasthan by eight runs.

In Kolkata, Bengal batsmen cut a sorry figure on home turf to be bowled out for 147, giving Kerala an upper hand. 

At stumps on day one, Kerala were 35 for the loss of one wicket.