Question: What metro are both the Magenta line and Palam metro line part of? 
Sentence (from "Magenta Line (Delhi Metro)"): The upcoming Hauz Khas station on this line and the current Yellow Line will be the deepest Metro station at a depth of 29 metres, surpassing the record set by Chawri Bazaar station currently on the Yellow Line, at a depth of 22 metres.
Relevant evidence: No