Bhopal, May 09: Madhya Pradesh chief minister Digvijay Singh today said the External Affairs Ministry had denied him permission to proceed to Vancouver in Canada to attend a dalit conference. Addressing a press conference here, the chief minister said he had been intimated by the ministry to this effect. Answering a query as to why permission had been denied, he said “I also want to know that”. Singh, however, said as per protocol chief ministers and other ministers cannot go abroad without permission of the External Affairs Ministry. Bureau Report