Kalsangra and Dange, who lived in Indore, are also wanted in the Ajmer Dargah blast case.
According to sources, some material used in the Samjhauta blast had been bought from Indore. NIA intensified its efforts to nab the duo following Swami Aseemanand's statement to a magistrate that Kalsangra and Dange were involved in some of the blasts in the country.
Aseemanand himself was arrested in connection with the Samjhauta blast. Sixty eight people died in the Samjhauta Express blast in February 2007.