I have analysed the data by the use of grounded theory manually and not electronically using software support. so please If there is any one have any justification to do analysis manual rather then use nvivo software.
Yes, because ultimately you are the one who makes sense of the data, you are the “instrument”. See Eliot Eisner’s The Enlightened Eye: Qualitative Inquiry and the Enhancement of Educational Practice. for a great discussion of how you, as the connoisseur of the topic or field of research are the one who does the analysis whether you use software to assist you or not.