Time-integrated (top-left figure) and time-resolved (top-right figure for Region 1, bottom-left figure for Region 2, and bottom-right figure for Region 3) polarization analysis of GRB 230307A in 100-600 keV using AstroSat CZTI. Each figure is composed of five panels: (1) the Compton light curve for the Region of interest (time-integrated, Region 1, Region 2, and Region 3), obtained using Bayesian block analysis (blue-shaded Region, top panel); (2) the posterior probability distribution of the detector PA (middle-left panel); (3) the modulation curve of the burst, illustrating the azimuthal dependence of the detected counts (middle-right panel) where in blue is the best fit curve and pink are the 250 randomly selected fitted modulation curves; (4) a two-dimensional contour plot depicting the joint posterior distribution of the detector PA and PF (denoted as PD in the plots, equivalent to the PF referenced in the text; bottom-left panel); and (5) the posterior probability distribution of the PF (bottom-right panel). The Bayes factor, quantifying the strength of evidence for polarization, is computed for the 100–600 keV energy range.