What is the most difficult aspect of getting a job?

You got it.

Now that I cleared the initial interview, will I get the salary I deserve?

Check some of the tips to be prepared for the D-day.

How to be prepared for salary negotiation:

1. Find your worth: Discover what you're worth by researching salary surveys for your occupation, experience and location.
2. Find company's finance position: Research the company to see if they're booming or hurting financially. If booming, go for top salary, benefits and perks. If not, get what you can comfortably live on, but think twice about working there.
3. Upgrade your soft skills: Research yourself so you can sell your skills, talents, accomplishments, work ethics and experience for top pay.

While negotiating the salary:

Is salary negotiable?
Your answer should be YES. Politely sidestep salary (say it's negotiable, open or competitive) until you're confident they want to hire you. Then you have leverage.

Confirm the boundaries
When asked point-blank about salary, counter by asking what the range is, so you know the boundaries.

Command what you deserve
Command rather than demand, while working toward a win-win situation.

What if you dont succeed?
Be eager and enthusiastic, but willing to walk away if you've reached an unsatisfactory negotiating ceiling. Don't burn your bridges, but rather politely decline the offer.

What if the outcome is success?
Even if you get what you want, wait to accept for a day or two to think it over, time permitting.