Heavy rains on 18 and 19 September 2010 in the Ganga watershed associated with a regional monsoon event that occurred between Myanmar and Middle East caused disastrous landslips in Uttarakhand, Indian Central Himalaya and floods in the plains of Punjab, Uttar Pradesh and Delhi. Relation between quantum of rainfall per day and slope failure has been examined in the light of similar studies in other parts of Himalaya. The cloud movement and rainfall pattern