Just wanted to make clear, Parramatta and Chatswood have all sorts of jobs but as a starting point I mainly meant to get your rental there so you can commute to the IT locations easily. Those two suburbs have a good combination of shops, restaurants, rentals, public transport for a new migrant. Once you're settled you'll be able to explore the areas of Sydney where you eventually want to settle. Because of the train lines you'll have good access to the IT hubs.
You'll be very busy for the first 6 months, only after that can you catch your breath a bit and really start to establish what you want, what appeals to you, at that time I would recommend you get a car as you can't really explore the many suburbs unless you can drive to them.
I find the South Asian community settles out in the Hills districts and Western Sydney after a bit, of course many stay in their original suburbs but I suspect you'll move once you know what's out there and the lifestyle you want to lead.
The above is a generalisation, you could also find the North Shore, Eastern Suburbs, and Northern Beaches more appealing. Only you know yourself and what you like so like anyone you need a starting point and then you have the freedom and knowledge after some time to get exactly what you want.
Thank you very much Amaslam. Appreciate your reply. So I should be zeroing in on Parramatta or Chatswood. Thanks again.
Regards,
Ansuman