I noticed that they have started Big 10 services to Sarjapura road, which takes the following route :
Dommasandra -> Sarjapur signal -> Jakkasandra -> right to Wipro Koramangala -> left to BDA complex -> right to Sony World junction -> Domlur -> M G ROad Police Housing Corporation
Route details are updated in BMTC website, and it shows 15 minutes frequency.