 So, I will be just presenting a very brief introduction to the clicker, after that my team will be showing you how to install the clicker software on the remote servers which has been already given, but just a brief introduction to everybody again. So basically what is the normal classroom scenario, so teacher comes, teachers on the blackboard, so there is not much interaction with all the students. So assignments are given, correction of the assignments, entering the marks manually and all this thing was supposed to be done. So during this process some mistakes happens and more headaches for the teachers was there. So what is a clicker or a students response system which is also called as audience response system or classroom voting system, it is a small handle device which was given to all the students and students question is displayed on the screen and students response to it. The famous example is Karn Manigal Karolpati, so how does it work, it allows the students to participate in any quiz sessions, conduct by faculty and submitted response within the minutes. So during this session the teacher can judge whether the classroom have understood the questions or the topic properly or not. We have conducted a similar kind of quizzes in IIT Bombay and we have seen a very drastic changes. For example, we have conducted a quiz session for one hour, sorry half an hour and after half an hour we have conducted a quiz, Professor Fatah has conducted a quiz. In that thing what we have observed 60% of the people have given the answers properly. So teacher initially immediately tells to discuss among the students and the same question is flashed again. So after that session we have seen almost around 90% of the students have given the right answer, so between the group discussions also among the students you can see there is a lot of changes occurs. So advantage of using clicker, assignments and greetings and deportings are provided immediately, modify revisions for the teaching, general classroom discussion, evaluation. So one more thing what we have seen is if a science student is attending the class, so major time the raise hand function teacher does not understand whether the question has been raised or not. So this thing is also get clarified within using the clicker's thing, data driven. So this voting system basically for this. So individually anonymous votings can be done for in particular topics or anything like that, anonymous also we can do it. So it started almost in 2008 in IIT Bombay. So we have released the clicker version 1 and version 2. So this was the initial version 1 which was only options for A, B, C, D. So this was the clicker I think most of the people have used it at the remote centers. So we came up with the second version which was having a display on it, two line display. So in which multiple answers numeric with decimals, true, false, yes, no, raise and all these features were enabled. So students can actually see on the display whether the questions have been, question number and which option he is pressing and whether the answer I reached or not. In version 3, so it was a tablet based version which came. So web based distributed architecture was implemented. So use of Akash and Wi-Fi network for the communication. So this is a basic scenario where in a classroom the system works. So instructor is connected to the server, that server in lets give the display and from the whatever question is displayed the same question is displayed on each and every tablets. So after the time frame whatever is defined for the particular quiz is 30 seconds, 60 seconds whatever is there, automatically the responses are collected by the server and immediately the graphs are shown. So this is a simple scenario where a classroom is going to work. So this is a remote center, the IT Bombay is there and for example I have just given remote center 1 and remote center 2. So there are almost 250 remote centers. So each remote center we have given the software which has to be installed on each and every remote center PCs. So that PC is connected through Wi-Fi to the tablets. From IT Bombay the quiz will be launched, the quiz will be reflected with the timestamps and everything to each and every tablets. After that suppose at remote center 1 there are almost around 80 participants. The 80 participants response are collected by the remote center server, make it as a one file and it is given to IT Bombay. We have given the distributed because example 15,000 tablets directly connected to IIT Bombay will be a very bit difficult. So we have distributed for 250 and one small file which is just exported to IIT Bombay site and the results are generated. So my colleagues will now explain you for the remote center server how what are the different installation process are required for it. Thanks a lot.