The 02779 coaches run in three portions.
1) From SBC to UBL, they run as sectional coaches with Rani Chennamma express (16590). On this run, the coaches reach UBL in the morning and undergo primary maintenance there.
2) From UBL to LD, the coaches run as train 06948 Vasco-Londa throuch coaches, running with UBL-Miraj express till Londa, and then with Goa express from Londa to VSG.
3)...
more... In the return, they run as through coaches to Bangalore (02779), with Goa express between VSG-Londa and with Rani Chennamma express between Londa-SBC.