Serum is the best company to work .no pressure related work and hike also good compared to other companys .they dont extend the timeing n the chairperson is 8th richest person in india . he gave 100 croes to swach bharath for cleaning the pune city.he is very kind .he gave gifts to every working person in his company even for workers he give 50000 rs60000rs. shifts are done very rarely .its nice to work, their salary timeings all r good .its huge biotech company occupied by 500 acceres.