Corymbia citriodora ?
Request Tree ID 084 - Lalbagh, bangalore - RA - Is it some eucalyptus?:

Yes I think so.
Can't tell the exact species though.
Th bark looks different from any species I have seen, and the fruits are oval and with little opening on one end compared to any other species.
The ground below the tree is littered with these fruits
To me appears close to images at Corymbia citriodora