No. Since crime was committed on Indian soil, sole jurisdiction lies with India.Saudis could ask Nepal to intervene, but neither would it have any effect on investigation as withdrawal of FIR would need India's acquiescence, not would it bw considered proper by convention (India would also object to it as it would be constructed as interference in internal affairs/prosecution).International law only forbid sentencing of diplomat, they don't prevent immunity from investigation, or from running a trial in abstensia (though this is never done for obvious reasons).
The diplomat and her wife are safe from any action, but other six expats involved would be prosecuted.
There would be no dropping of charges as a diplomat could not be sentenced as all, so no need. Six expats ,though, would face prosecution and jail time, if convicted.
Don't be an idiot.
Saudis are in no position to turn a personal folly of their diplomat into something of international affair involving countries. In all probability, Saudis would be more miffed with their diplomat than Indians are, and if he is not a royal would face consequences of putting Saudi Arabia into a bad spot.
It is front page NEWS in two newspaper that I read.
By Prosecution, I meant trial in abstensia, if India is bent on making a point. I was making a technical point, not something which ever happens.
