I moved from USA by 1st Sept, 2018, to Canada. Was employed in US until 1st Sept. Do I need to report US based income, if yes how do I report the same?

There are three things to keep in mind.

1) Residency status (2) Country Source (3) Type of income reported.

Non-residents and deemed non-residents - report your income from Canadian sources such as the taxable part of your scholarships, fellowships, bursaries, net research grants, income from a business without a permanent establishment in Canada, and taxable capital gains from disposing of taxable Canadian property.

Deemed residents - report your gross world income. World income is income from all sources both inside and outside Canada.

Foreign income earned prior to arriving in Canada. We want to know about your world gross income. It boils down to whether you get a full year or is it prorated from your date of entry. 

How to from TurboTax FAQs:

How to determine residency status - https://turbotax.community.intuit.ca/replies/2647682

How to Report Foreign Income sources in TurboTax - https://turbotax.community.intuit.ca/replies/2647976

Where to Find?:

T1135 form, Foreign slips & Foreign Tax Credit

• Income tab > Other Income Sources > Foreign Income Verification Statement (T1135)

• Foreign slip is under the Income Tab > then Tslips > Foreign Income

• To access the FTC form, go to the "Find" icon at the top right corner of your screen and type in "Foreign Tax Credit".