line charts

Hi prashantg364 
What issue you are facing in power bi ?? you didnt mentioned that.

share screenshot what is you query?

for Y axis you can take value from other  column it seems you all A B C values are coming under 1 column so that why power bi takes all you A B C values on Y axis not on secondary Y axis.

You can create a measure like this for Secondary Y axis
Column c= CALCULATE ( Sum( Sales), [Code]= "C")

It will create a seperate measure for your C code. take your measure into secondary Y axis.

For Y axis create another measure with consist of 2 code A &B
Column A&B= CALCULATE ( Sum( Sales), AND([Code]= "A",[Code]= "B")

Take column A&B in Y axis 
Take column C in secondary Y axis.

I hope I answered your question!

Hey prashantg364 
You can simply create two columns 
1. For code - A&B 
2. Foe code - C
and now you can simply create the multiple-line chart where you can display codes A & B Sales on the primary axis and code C Sales on the secondary axis.
To create the column use the following: https://learn.microsoft.com/en-us/power-bi/transform-model/desktop-tutorial-create-calculated-columns

I hope my answer was helpful to you!