The bottomonium states are one of the cleanest probes to study the characteristics of the quark-gluon plasma (QGP) as they are produced through hard scattering at the early stage of the collision. Their relative production cross section in PbPb collisions compared to pp collisions, the nuclear modification factor R AA , has been studied and strong suppression was found in PbPb collisions. The R AA has been obtained in centrality intervals for Υ(1S) & Υ(2S) and also reported as a function of p T and rapidity. Also the yield ratios of the excited states Υ(nS) compared to the ground state Υ(1S) in both pp and PbPb collisions are combined to form the double ratio, which is equivalent to the ratio of the nuclear modification factor R AA. This quantity has been studied for the two excited states Υ(2S) and Υ(3S) in pPb and PbPb collisions.