A series of low intensity blasts in public transport in the past three days injured dozens and have shattered the fragile peace in Nepal.
The blasts in the plain districts of Terai bordering India have taken place in passenger buses. One person has been killed and 46 others injured in three blasts that started from Friday.
Police in the districts bordering India have been kept on high alert following the blasts believed to have been carried out by Terai based outfits protesting against the killing of a leader in police action.
One person was killed and 27 others injured, four of them critically, when an improvised explosive device (IED) exploded in a passenger bus at Butwal in Rupandehi district on Sunday.
"Nobody has claimed responsibility for the act, but we suspect the Bhagat Singh-led Janatantrik Terai Mukti Morcha," Republica quoted district superintendent of police Sher Bahadur Basnet.
On Saturday, six persons were injured in an IED blast inside a passenger bus in Banke district. The Janatantrik Terai Madhes Mukti Morcha had claimed responsibility for the act.
A day earlier, 12 passengers were injured when a socket bomb went off inside another bus in Rautahat district. The Terai Madhes Mukti Morcha had claimed responsibility for the blast.
On Sunday, police in Bhairahawa diffused a bomb allegedly planted by the same group suspected of carrying out the blast in Butwal.
Nepal is in the process of completing the peace process started in 2006 after end of the civil war and formulating a new constitution before the May 28 deadline expires.
But differences among and within political parties has affected both crucial tasks and there is speculation that the deadline, which was extended by a year in 2010, would get another extension.