I do agree some parks are large but Gir for lions isnt one of them. Most of the large parks are for tigers and shrinking due to human encroachment (deforestation and poaching).

For a long time Ive been hearing the relocation programme by the govt. to relocate lions to other national parks but its only on paper and no concrete steps have been taken.

Many national parks now have zero populations of tigers. They have been all poached. The funny thing is that it has been so for many years but the govt.has announced this now.