Senior Congress leader Digvijaya Singh on Tuesday sparked a fresh row by claiming that a "blatant intelligence failure" was responsible for the death of 40 CRPF personnel in the Pulwama terror attack of 2019.

A tweet by Singh on the fourth anniversary of the suicide bombing of a CRPF convoy evoked a sharp reaction from Madhya Pradesh Chief Minister Shivraj Singh Chouhan who demanded that the Congress`s "DNA" be examined.