Left panel: [O iii]λ5007/Hβ vs. [N ii]λ6584/Hα diagnostic diagram. The typical error on the line ratios is plotted in the upper right corner. The solid red and blue lines are the lines by Kewley et al. (2001) and Kauffmann et al. (2003) respectively. These lines define the H ii, the composite and the AGN region outlined in the diagram. The points in the diagram are color coded based on the different subset selected for each of the regions. Right panel: pixel map of the region color coded based on the subsets defined in the diagnostic diagram. Hα intensity contours are overplotted in black. Contour levels are 2.98, 1.89, 0.75, 0.33 ×10^-16 erg s^-1cm^-2 arcsec^-2. The arrow in bottom-right corner indicates the direction of the radio jet.