The town is situated on National Highway No. 44, between Khanna and Ludhiana. Sahnewal is situated on Ludhiana Delhi NH-1, far 13 Km from (Ludhiana- Delhi) Highway. This place has a historical gurdwara, Damdama Sahib, associated with Guru Gobind Singh. While leaving Chamkaur Sahib, the great Guru passed through, Machhiwara, Ghulal, Katana Sahib, Reru Sahib, Kanech Village reaching Sanehwal on 27th
Dec, 1704. Here he leaned against a Karir tree to take rest and called for the village panchayat. The great Master ordered that there would be none in future also. Saying this the Guru started on his onward march, when a few of the village folk approached him asking for forgiveness and served the Guru. The Guru said that elder and wise people would do justice in the absence of a Panchayat. Such is the situation and it goes on. Another historical Gurudwara Reru Sahib (Nandpur) is situated here. Gurudwara Reru Sahib (Nandpur) is also associated with Guru Gobind Singh. While on his way to Khidrana Dheh (Muktsar) from Chamkaur Sahib, Guru Ji stayed here on the night of 27/28 December, 1704, spent a night under the reru tree. That Reru tree is still here. That is why, this gurudwara is called Reru Sahib. Majaar of peer baba BOHRI SHAH is also of great importance. This town has good commercial and industrial activity also. The main bazaar is situated on Kohara to Delhon Road. Ward No. 6 & 8 comprise of old village Sahnewal and old Sahnewal bazaar which was a prospering business centre before partition. The town has a good number of educational and Medical facilities, Post Office, Telephone Exchange, FCI Godown and an office of the Market Committee. In addition to it, there is a Railway Station also. Even narrow streets of old village have C.C. Flooring. Ward no. 1 Prem Colony and ward no. 9 New Settlement are the slum areas of the town. But these colonies have been provided with 100 percent C.C. Flooring and street lights