lucknow one of the two twomonthold white tiger cubs at lucknow zoo has become inactive and is facing problems in walking while the duo has been living a healthy life since their birth in august doctors at the zoo noticed problems in the hind legs of one on wednesday the plan of allowing the public to view the cubs has been postponed till the legs of the cub become strong enough to let it walk and run earlier we had plans to put the cubs on display but since they need some more time to be active and healthy to balance themselves we will wait for some more daysdoctors would visit them daily to ensure their wellbeing said zoo director anupam gupta