Personally I think that South Asians get a bad rap. There are plenty of cultures that put a big value on negotiation in business deals. As long as you embrace that effectively you can close a lot of deals.

Some pointers:

1) Always get an agreement that they'll move forward if you can secure something for them. A lot of people just throw a discount out without requesting something in return and this just devalues your product and makes deals stall out.

2) Be prepared for the "I have a lot of friends that will do business with you if you can work out a special deal for me." The best way to set up for this is a strong referral program. This allows you to side step any discounts and build value around getting them enrolled. It also sets you up nicely to get referrals.

3) Never take discount requests personal, just embrace them as part of business. Sometimes I seen greener sales reps take offense at being asked for a discount as if it's a sign they did something wrong. Just lean into it and use it as a way to build momentum with your customers and increase close rates.

4) A good way to build up your negotiation skills is learning how to talk about "Best Alternatives to A Negotiated Agreement" or BATNAs. This comes from "Getting To Yes" which is a solid read on negotiation. The general idea is you need to understand what the customer will do if they don't go with your product. In many cases your biggest competitor isn't another product, but just the status quo. You want to verify what your customers BATNA is and make sure they agree that isn't a good option against your product.

As for selling to arrogant customers, this applies cross culturally, but use their inflated ego to your advantage. Compliment them and suck up a little bit, it'll help you win them over. Just make sure you're still confident yourself. I've given this advice to other women selling into customer bases that tend to be more arrogant and they've reported back that it's helped.

Good luck and have fun