As per as my knowledge there are only two education institutes that offering the M.Tech course through distance education in Chandigarh. Following are the institutes that offering the M.Tech through distance in Chandigarh.

Punjab Technical University
S.C.O. 491-92, IInd Floor, Himalaya Marg, Sector 35-C, Chandigarh, 160022 ‎
0172 461 6557

LPU Centre Zirakpur
second floor above SBI Bank Patiala Road Nera Lucky Dhaba, National Highway 64, Zirakpur, Punjab 140603 ‎
098146 78177

Following are the institutes that offering the M.Tech thorough distance mode in India.

Indian Institute of Technology Chennai
Pondicherry Engineering College Pondicherry
Jawaharlal Nehru Technological University,
Indian Institute of Technology Mumbai
Kamla Nehru Institute Of Technology
Gautam Buddh Technical University
Dadasaheb Kannamwar College of Engineering
Nagpur University Maharashtra
Lingaya's Institute of Management and Technology
Indira Gandhi Institute of Technology
Biju Patnaik University of Technology Orissa
Punjab Engineering College
National Institute of Technology Calicut
University Maharshi Dayanand University
Biju Patnaik University of Technology
Sikkim manipal university
Amity university
Lovely professional
Maharshi dayanand university
Pondicherry Engineering College Pondicherry
Gautam Buddh Technical University
Guru jambheshwar university
Kurukshetra university
Guru gobind singh university
Yashawantrao Chavan Maharashtra Open University
Tamil Nadu Open University
Netaji Subhas Open University (NSOU)