Yes, you should issue a show cause notice describing the charges and ask him to show reasons why action should not be taken against him for his continued misconducts. The charges should be specific like it should show what misconduct did he do and also show on which date and at what time etc and allow him to reply giving reasonable time. If his reply is not satisfactory then proceed with a domestic enquiry appointing an Enquiry Officer. Follow the procedures and then take a call based on the reports by the Enquiry Officer. If you terminate based on two or three warning letters only, the termination may become illegal.
Madhu.T.K 28th October 2014 From India, Kannur