For Bca first go through the guidelines of the project as provided by the university and then choose the guide under whose guidance student completes the project report.
Students should select the topics from the real world problems like Banquet Hall management System or mobile Service center management System. Dont select the topics like Libraray Management system,hotel management system etc because they are very common and rejected by the universities.
Secondly select the latest languages like .net,java,j2ee,android, php,iphone etc because six months are given to learn and create the project report.Therefore it is suggested to select the latest topics and properly set the objectives of the project,do the system analysis by properly creating the DFD and ER diagrams.
Finally create the project report,with the cd which contains the running code of your project and prepare for viva.for any professional help you can contact us at BALUJA LABS,A1/17,Janakpuri,New Delhi.9015596280,011-41668088