Frack and Top
The two of you seem to be bitter anti expat nationals with chips on your shoulders and under the impression that if the expats were not there then more national F/Os were be upgraded by default.
Your allegations concerning the DGCA about certification and vetting of expat pilots are without merit. I've experienced the process of the DGCA interview, Air Law exam, credential verification too. Now I can't speak for all expat crews or pilot in India. Perhaps what you say about Air India Pilots may be true, being that AI is a state owned carrier.
The purpose of the expat is to fill a void until such time that the likes of you two, national pilots, can assume the responsibilities of aircraft commander. The private carriers of India ala INDIGO, JET AIRWAYS, SPICE JET, and KING FISHER do have a choice in the matter.
They can cave into the malevolent malcontents and cancel the contracts of expat pilots and let their aircraft sit on the ground without crews until the nationals can successfully succeed in their command upgrades. But the shareholders would never stand for that... and rightfully so.
What happened in Bangalore is a truly a tragedy. Your news agencies don't make it better either with their biased reporting. IMHO, Indian news agencies such as the Times of India and CNN-IBN are riddled with reporters which provide nothing short of material misrepresentations of facts which go unchecked concerning the expat pilot.