Answers (2)
1) Innovatiview
2) mobilejammer
3) electronics.howstuffworks
Innovatiview is the best supplier among them. It is Delhi based but has a strong distribution channel throughout India. Their jammers have been used by many schools, colleges and industries. They have a wide range of jammers and their customer service is fast and reliable. I heard that they work closely with the Government organizations and offer customized solutions to conduct cheating free exams.
Website:
www.innovatiview.com