Mumbai Local - RailFanning nirvana.

Nothing Great in This type of Overtake.
Intercity Tak Overtake maar chuki hai AK Raj ko and Placed at NZM Before Rajdhani.

Here reason for OT was Justified as Tamil Nadu was on Time AK Rajdhani was Delayed by more than 6hours.
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If You Look at PF Position at MTJ AK Raj had to Cross mainline and Move onto PF 4-5 which could've been occupied while Mainline of MTJ AGC PF (1-2) would have been Vacant and gave clear run to Tamil Nadu. That's why just at One Station difference AK Was Looped in order for TN To skip MTJ without adding delay while PF 3-4 were occupied by any other train.