Siliguri, Burdwan, Oct 21 (ANI): Paramilitary, 'Sashastra Seema Bal' (SSB), beefed up security in the areas along the Nepal border in wake of the bomb blast in Burdwan district. The explosion in Burdwan district of West Bengal on October 02 had left two suspected militants dead, while the city court has sent three accused in police custody till October 22. Two women were also arrested in connection with the blast on October 05. The involvement of militant outfits like Lashkar-e-Toiba and Harkat-ul Jihad al-Islami are being suspected in the case as a large number of watch dials, SIM cards, and other tools required to make improvised explosive devices were found in the house. Speaking to mediapersons, Director General of SSB, Ranidanga North Bengal frontier head quarter, BD Sharma, said that many criminal activities were taking place along the border area, which is a threat to India's security.