As you want the list of Best Colleges Under Punjab Technical University (PTU) I am giving the same here .

List of Colleges Under Punjab Technical University (PTU):
MK Institute of Engineering & Technology
Ram Devi Jindal Educational Charitable Society Group Of Institutions
Sant Baba Bhag Singh Institute Of Engineering & Technology
[4]Punjab Institute of Engineering & Applied Research(PIER)
KC College Of Engineering & Information Technology
Ajay College Of Engg
St. Soldier Institute Of Engineering & Technology
Satyam Institute Of Engineering & Technology, Amritsar
SECT Group Of Institutes, Banur
Lala Lajpat Rai Institute Of Engineering & Technology
Cambridge Engineering College
Rayat Institute Of Engineering & Information Technology, Railmajra, Ropar
Guru Nanak Dev Engineering College
Ghubaya College Of Engineering & Technology
IITT Engineering College, Pojewal
Ferozepur Collage Of Engineering & Technology
Chandigarh Group Of Colleges
Malout Institute Of Management & Information Technology, Malout
Khalsa College Of Engineering & Technology
Asra College Of Engineering & Technology
Swift Technical Campus
S. Sukhjinder Singh Engineering & Technology College
CGC Group Of Colleges
Bhai Maha Singh College Of Engineering
Guru Teg Bahadur Khalasa Institute Of Engineering & Technology, Malout
North West Institute Of Engineering & Technology, Dhudike
Dav Institute Of Engineering & Technology
CT Institute Of Engineering Management & Technology
Swami Parmanand Engineering College, Mohali
Aryans College Of Engineering, Banur
Guru Gobind Singh College Of Engineering & Technology
Shaheed Bhagat Singh College Of Engineering & Technology
Doaba Women Institute Of Engineering & Technology
Lala Lajpat Rai Institute
Rayat Bahra Institute Of Engineering & Nano-Technology
Global Institute Of Management & Emerging Technologies, Amritsar
Guru Gobind Singh College Of Modern Technology, Kharar
Sukhjindra Technical Campus, Dunera, Gurdaspur
Punjab Polytechnic College (PPC)
Chitkara Institute Of Engineering & Technology
Giani Zail Sing College Of Engineering & Technology
Swift Technical Campus,Rajpura,Patiala
Gurukul Vidyapeeth Institute Of Engineering & Technology
Gulzar Group of Institutes, Khanna ggi.ac.in
Golden College Of Engineering & Technology, Gurdaspur
Gyan Jyoti Group Of Institutions, Banur
Radiant Institute Of Engineering & Technology
Aman Bhalla Institute Of Engineering & Technology
B.I.S. College
RIMT-Maharaja Aggrasen Engineering College
Ludhiana College Of Engineering Ktani Kalan, Lushian
Swami Vivekanand Institute Of Engineering & Technology
RIMT Institute Of Engineering & Technology
Kings group of engineering & technology, barnala
Institute Of Engineering & Technology Bhaddal Technical Campus, Ropar
Baba Hira Singh Bhattal Institute of Engineering & Technology
Desh Bhagat Engineering College
College Of Engineering & Management, Kapurthala (Best Placement Under PTU colleges)
Guru Nanak Institute Of Engineering & Management
Aklia Educational & Research Society Group Of Institutions
Gulzar College Of Engineering, Ludhiana
Rayat & Bahra College Of Engineering & Bio-Technology For Women
Shiv Shankar Institute Of Engineering & Technology
Desh Bhagat Foundation Groups Of Institutions, Moga
Baba Banda Singh Bahadur Engineering College
CT Institute Of Technology, Vill Shahpur
Ramgarhia Institute Of Engineering & Technology
Sri Sukhmani Institute Of Engineering & Technology
Mai Bhago Govt. Poly. College for Girls, Amritsar
Bhutta College of Engineering & Technology ,ludhiana [1]
Beant College Of Engineering & Technology
Chandigarh Engineering College
Bhai Gurdas Institute Of Engineering & Technology
Baba Kuma Singh Ji Engineering College
Patiala Institute Of Engineering & Technology For Women
Jasdev Singh Sandhu Institute Of Engineering & Technology Patiala, Punjab-140701
Adesh Institute Of Engineering & Technology
Swami Sarvanand Institute Of Engineering & Technology, Dinanagar
Bahra Faculty Of Engineering
Ideal Institute Of Technology
Shaheed Udham Singh Engineering College, Tangori
Swami Parmanand College of Engineering & Technology, Mohali
universal institute of engineering and technology
Indo Global College Of Engineering
Sachdeva Engineering College For Girls
Baba Farid College Of Engineering & Technology
Sai Institute Of Engineering & Technology, Manawala, Amritsar
Doaba Institute Of Engineering & Technology
Bhai Gurdas Institute Of Engineering & Technology
Amritsar College Of Engineering & Technology
Global College Of Engineering & Technology, Kahanpur Khui
Regional Institute Of Management & Technology
Ludhiana Group Of Colleges, Chowk Chaukiman
GGS College Of Modern Technology
Sri Sai College Of Engineering & Technology, Badhani-Pathankot
Bharat Institute Of Engineering & Technology
Rayat & Bahra Institute Of Engineering & Bio-Technology
Quest Infosys Foundation Group Of Institutions
Guru Ram Dass Institute Of Engineering & Technology
Gurukul Vidyapeeth Group Of Institutes
Punjab College Of Engineering & Technology PCET, Lalru Mandi (Village Malakpur) District Mohali Punjab
Rayat Bahra College Of Engineering & Nano-Technology For Women