Bid Price was more than Offer price, but no transaction taking place


Today I oberserved this offer price of 5531.30 in maruti. I was noticing this offer for more than 10 minutes and bids price are more than offer price. I tried placing order at exact price at quantity. 150 and 5531.30. But did not get executed. I am confused why this is happening. 

Can any one explain. what was happening here. That offer still exists at the time of writing.