<Ol> <Li> Professionals can use their basements as offices, except in 70 upmarket localities . </Li> <Li> MCD or government - recognised pre-primary schools will not be sealed . </Li> <Li> Commercial activity will be permitted in Delhi's 350 villages, except polluting or hazardous units . </Li> </Ol> <Li> Professionals can use their basements as offices, except in 70 upmarket localities . </Li> <Li> MCD or government - recognised pre-primary schools will not be sealed . </Li> <Li> Commercial activity will be permitted in Delhi's 350 villages, except polluting or hazardous units . </Li>

What is the reason of ceiling in delhi