Explanation:

Only statements 1&2 are correct.

• Weeks of heavy monsoon rains flooded farmland and hundreds of villages along the Sutlej River in Pakistan and India recently.

About Sutlej River

• It is the longest of the five tributaries of the Indus River.

• It is also known as "Satadree".

• Origin: It rises on the north slope of the Himalayas in Lake Rakshastal in southwestern Tibet at an elevation above 15,000 feet (4,600 metres).

• The Sutlej River is primarily located to the north of the Vindhya Range, east of the Pakistani Central Makran Range and south of the Hindu Kush region.

Course

• The river enters India by flowing west and southwestwards through the Shipki La Pass in Himachal Pradesh at an altitude of 6,608 metres. 

• The river then flows through Punjab near Nangal before meeting the Beas River. The merger of these two rivers goes on to form 105 Km of the India-Pakistan border. 

• The river continues to flow for another 350 Km before joining the Chenab River.

• The combination of the Sutlej and Chenab Rivers form the Panjnad, which finally flows into the Indus River.

• Length: It has a total length of 1550 km, out of which 529 km is in Pakistan. 

• Tributaries: It has many tributaries, with Baspa, Spiti, Nogli Khad and Soan River being its main ones.

• Water from the Sutlej River has been allocated to India according to the Indus Waters Treaty of 1960. 

• There are several major hydroelectric projects on the Sutlej, including the 1,000 MW Bhakra Dam, the 1,000 MW Karcham Wangtoo Hydroelectric Plant, and the 1,530 MW Nathpa Jhakri Dam.

Hence option 2nd is correct.