Crowded place.You can get,
176 Hettiyawatta Karagampitiya/Nugegoda
(Via Hettiyawatta> Kotahena> Armour Street > Panchikawatte > Maradana > Punchi Borella > Borella >Rajagiriya > Kirimandala Mawatha > Nawala > Nugegoda
from here
Following buses stops here
176 Karagampitiya - Hettiyawaththa
176 Nugegoda - Hettiyawaththa
good