Pr, Ca co-doped LaMnO3(LPCMO) exhibits a variety of complex physical properties owing to the co-existence and competition of different structural, magnetic and electronic degrees of freedom. The complex interplay of lattice, orbital, spin and charge interactions in LPCMO gives rise to a very rich phase diagram with properties such as a metal to insulator transition (MIT), colossal magneto-resistance and phase separation. In bulk hole-doped manganites, multiple electronic phases coexist as a consequence of non-uniform distributions of strain and magnetic phases on different length scales from nm to micron are reported. using GISANS measurements we will obtain direct evidence of the length scale of magnetic domain and its shape as well as correlations with nonmagnetic domains in these manganite systems, which will help in understanding the phenomena of phase coexistence in these system