I appreciate your idea for going for project on "Industrial Psychology". It will be prudent if you could touch upon all the aspects of an industry and studying industrial psycholgy must be from the angle of understanding the psychological aspects of personnel at various grades and various hierarchial levels. Vividly industrial psychology allows you to u/s how an employees feels about his/her organisation and allingns the role play to his/her job description. In the process he/she u/s how colleagues, peers, subordinates and the superiors deal with each other in pursuit of organisational goals. Team building, group dynamics are the few aspects which needs to be understood and managerial competencies, people oriented organisational culture, value system, allignment of self-vision and goals to company-vision and goals and filfilling one's own responsibilities to actualise these mission of the company.
At micro level, i.e. at individual employee level, we can study, motivational schemes, reward and recognition, performance management, inter-personal communication system, knowledge forums, study of various policies regarding, commitment, system, culture building in the organisation. You can interact contract labour, or study in depth the manpower planning, statutory obligations, compliance of ISO standards, etc.,.. and in one word the scope of Industrial Psychology is very wide and you would develop as a hardcore HR professional if you objectively learn the aforesaid aspects. As per me people management by studying the people's psychology is the essence of whole study which is the rarest of the rarest factor of production which needs special skills to study about. Drawing inferences from your study would give you clarity on your project. Framing questionnaire is not only easy but interesting in this topic.
I wish you all the best in all your future endeavours.