Jaswant Singh, J.

1. This order will dispose of four civil writ petitions bearing C.W.P. No. 8911 of 2007, C.W.P. No. 13483 of 2007, C.W.P. No. 3647 of 2007and C.W.P. No. 3730 of 2008.

2. The aforesaid Civil Writ Petitions involve identical/common question of law. Therefore, the same are being disposed of by way of the present common judgment. Counsel for the parties have agreed that C.W.P. No. 8911 of 2007 be treated as main Writ Petition and rest of the Writ Petitions may be disposed of in the same terms. Therefore, we have decided to enumerate the facts in brief as pleaded by the parties in C.W.P. No.8911 of 2007.

3. The petitioners who are 15 in number have filed the present Writ Petition under Article 226/227 of the Constitution of India for quashing of the impugned order/notification dated 26.10.2004 (Annexure P-5) passed by respondent No. 1-State of Punjab and published in Punjab Government Gazette (extra) dated November 03, 2004 approving the extension of municipal limits of Municipal Corporation, Patiala as per proposed boundaries published in notification dated 6th July, 2004 (Annexure P-4) and further to quash the impugned notices/assessment order dated 17.01.200