In Kolkatta all the propah people at Calcutta Club still say Calcutta.
In Madras ... let's leave it till they remove those dark glasses. Chennai Chenni Chinndi, (get creative now). But as far as I know they never said Madras. They pronounced it Med-drass.
In Mumbai only we ghats and ofcourse the Gujjus who speak in Marathi (or Gujarati) use Mumbai. The rest say Bumbai... which irks some of our Marathi manoos with quirks due to our collective inferiority complex ... but not the likes of:
Usha Kiron, Shanta Gokhale and many more some of whom are listed below. I Have heard say BOMBBAY.
Dinesh Keskar at Boeing
Vikram Pandi CEO of CITGROUP
Sachin Tendulkar
Kirloskars
Lokmanya TILAK
Dr Kashinath Ghanekar
V Shataram, Chitalkar Ramchandra, Vasant Desai, Master Bhagwan, Master Dattarm, Nanda, Nootan & Tanuja and Shobhana (their mother), Lata, Asha, Suman Kalyanpur, Usha Mangeshkar, MadhuriDixit, Varsha Usgaonkar, Shilpa Shirodkar, Urmila Martondkar, Namtra Shirodkar, Shobha Khote, Durga Khote, Viju Khote and so on and on ...
Those who were born or brought up in Bombay will say Bombbay.
So do you still want a beng a luru, in english, go right ahead.