Purnagiri JS is a scam. To start VB, doubling of BE-TPU must be done 1st.
Purnagiri JS can be speeded up. 12036 = DLI 06.25; 20.4 GZB 06.58/07.00; 57.2 HPU 07.32/34; 107.8 GJL 08.18/20; 161.2 MB 09.13/23; 205.2 CH 10.11/13; 274.2 BE 11.22/27; 278.6 BC 11.31/33; 281.2 IZN 11.39/41; 293.2 BPR 11.53/55; 332.2 PBE 12.35/40; 394.3 TPU 13.45| In return:- 12035: - TPU 14.35; PBE 15.37/42; BPR 16.22/24; IZN 16.36/38; BC 16.45/47; BE 16.55/17.00; CH 18.09/11; MB 18.59/19.09; GJL 20.00/02; HPU 20.46/48; GZB 21.20/22; NDLS 21.55| 394 kms in 7 hrs 20 mins @ 54 kph.