I too had to experience the Indian Call Centre yesterday.
I called yesterday in hopes of getting my BD PNR from VS reservations, (I called BD reservations, they say for my etkt, I had to call VS and not them).
I know how picky BD lobby agents are in DUB and so thinking to save me the grief of having to wrestle with the agent and maybe even rugby tackling her if she starts giving me attitude, I would be sensible and find this PNR code. No luck, the Indian-accented guy in VS reservations started to regurgitate what my baggage allowance was for my BD & VS flights, like for pete's sake; I didn't ask about my baggage allowance, I know what it is. I want to know what my BD PNR reference is. After asking him for it for 5 minutes and each time regurgitating the same stuff i.e. baggage allowance will be 23kg, I gave up.
Towards the end, I think it finally dawned on him what I was requesting for and he stated, "You will have to call BMI to get the PNR reference, sir".
Marvellous service. n(