Colin Knowles (with Roland Arnison, Angela Benham, Chris Drinkwater, Titch Kavanagh and Andy Phillips as climbers plus Christine Smart as BC Support). April-May 2001

The initial objective of this expedition was to make the first ascent of Tirsuli West, 7035m, at the head of the Siruanch Glacier in the Kumaon, but reconnaissance failed to reveal a safe route on the intended North Face. Another peak some 5km N of Tirsuli proved more responsive, and its first ascent was achieved by the entire team via its South Face at Alpine D+. Approximately 6160m high, it was subsequently named 'Shambhu Ka Qilla' (Shiva's Fortress).