New Delhi, Oct 2:  today condemned last evening's serial blasts in Tripura, in which the death toll has risen to four.

The PM spoke to the State Chief Minister Manik Sarkar and inquired about the post-blast situation.

At least 76 people were injured in the serial bomb blasts that rocked Agartala on Thursday evening. The first blast took place at around 7:30 p. m. at the Radhanagar bus stand, and minutes later there was another blast at Maharajganj Bazar in the heart of the city.

Yet another blast rocked GB Bazar and the fourth blast took place at around 8:15 p. m. near Kathiababa Ashram on the outskirts of the Capital.

According to police sources, the attacks were suspected to be carried out by Bangladesh-based terror group Hizbul Mujaheedin Islamia (HuJI), and the local police have detained four persons in this connection. (ANI)