You can think about ITPL Main Road, Hope Farm Junction, or Kadugodi in Whitefield, depending on your tastes and budget. Additionally, Kaggadaspura and the Outer Ring Road are the best options for you in Marathalli.

Check this post to determine whether to choose an apartment or land: https://fincuss.com/topic/82/should-i-buy-a-property-or-a-flat/2?_=1730184450913

There is no need to change the card, as you already have the best one. ICICI Diamant CC is a super-premium credit card.

You can consider banks like HDFC, ICICI, Axis Bank or SBI for a savings account. These banks offer great debit card offers and rewards for online shopping.

I would suggest you consider HDFC Bank for opening a saving account. As HDFC bank is known for frequently offering discounts and offers you a great deals on Amazon, Flipkart etc.

But before selecting any bank, it’s better to do a comparison of their features, charges, online banking services and customer care services.

Selecting the best debit card for yourself highly depends on your spending habits, your earning capacity, and your location. Mostly all the banks provide amazing debit card options with good offers, high transaction limits, and good incentives. Some good debit card options are:

HDFC EasyShop Platinum Debit Card, SBI Platinum International Debit Card, ICICI Bank Coral Debit Card, Axis Bank Burgundy Debit Card, Kotak Mahindra Bank Privy League Signature Debit Card.

I would suggest you to consider SBI Platinum International Debit Card, as it gives you rewards on each transaction, gives special discount on travelling, dinning and shopping, gives you complimentary insurance cover.

For your trip, prioritize travel insurance with high medical coverage in the US, as US healthcare is quite expensive. Choose a company that has a strong international network. The companies which you listed offer travel insurance for the US. But before buying any insurance, compare the quotes, read the reviews focus on coverage, and also know about their claim settlement process for US medical expenses specifically.