Explain the following concept: Registrar of Companies (ROC)

The Registrar of Companies (ROC) is an office under the Ministry of Corporate Affairs (MCA) which deals with the administration of Companies and Limited Liability Partnerships in India.

• At present 22 Registrar of Companies is operating in all major states. 
• States like Tamilnadu and Maharashtra have more than one ROC. 
• ROC is a full-time field officer who has wide powers and responsibilities in administering the Companies Act. 
• ROC has to examine various documents filed with it by the companies in compliance with the Companies Act, 2013. 
• The ROC has to take decisions on documents filed with it and reply within 30 days from the date of filing the documents.