New Delhi: Former Delhi chief minister and Delhi Congress chief Sheila Dikshit on Thursday conceded her party's defeat in Lok Sabha polls in the national capital, terming the loss "very disappointing", and congratulated the BJP for its spectacular performance.

BJP candidates were leading over their rivals on all the seven seats in Delhi by margins ranging from 1-5 lakh votes. "It is very disappointing, we should have won," the former chief minister told PTI.