Bomb attacks of Sindhudesh Liberation Army on Pakistan infrastructure like gas pipelines, railway-tracks, branches of national Banks., polls of high transmission lines in Sindh have occurred since 2003.Sindhudesh Liberation Army an outfit of Sindhi nationalists claims responsibilities of these attacks.
All the separatist groups of Sindhi nationalists like JSMM, JSQM and others believes in political struggles. only one separatist outfit of Sindhi nationalists, Sindhudesh liberation Army believes in armed struggle for inception of Sindhudesh. SLA is only an organization in Sindh that claims these attacks.
From 2002 to 2006 there have been 120 bomb blasts in Sindh alone. CID solved 52 cases and 68 are still a mystery. The edition of 2006 Red Book, a confidential document, was printed. The total number of names in the book is 42, including JSMM chairman Shafi Muhammad Burfat alias Commando alias Ghulam Hussain Chandio. name of JSMM was included after several bomb blasts in the interior of Sindh,targeting railway tracks and sensitive government installations.
Two electricity pylons of 500kv high transmission line were damaged near the Sann railway station.
On 16 August Two bombs exploded on the line minutes after it had passed near Nawabshah, 250 km (150 miles) north-east of Karachi. The first explosion damaged track, while the second a few minutes later wounded two policemen and a journalist who were at the scene.
Two separate acts of sabotage, portions of railway tracks were destroyed when bombs exploded on up and down tracks in Kotri and Nawabshah.