Could you kindly let me know how should i package the application I have developed using nintex form and 4 nintex workflow.
It also contains lookup columns and multiple lists in it.
I have to move the application from development environment to staging environment.
I know one option of export nintex form and nintex workflow and then List template. but it will be in pieces and time consuming.
Answer to your question, There is no other alternative to import and export of list(template).
You do not have to import or export Forms/WFs in pieces. if you create a list template, Nintex Form and WF will be associated when you create a list in SIT using the template from your DEV site. You have to import only WF if you want to modify it in SIT otherwise no need.
Hoping this helps.