find data from multiple nested documents

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Jan 16, 2018, 4:27:07 AM1/16/18

to Mongoose Node.JS ODM

I have attached dump of my demo collection

I want to find where curriculums._id : 1, curriculums.grades._id : 2,

and output should be only topics array from grades._id : 2

means curriculums.grades.modules.submodules.topics

Any one can help me please

demo.json

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