Hi Shashwat,
First of all congratulations. Acceptance for the 2019 intake means that they definetely liked you. It could be that you're late in the process and there aren't enough places for this year.
I understand waitlists are tricky. I would suggest you to reach out to your interviewer and ask her if there is anything that you could do to convince the panel of your seriousness for this year's intake. Sometimes schools feel that they need to give you enough time to reach out to your employer or they feel that scholarship is an important criteria for you and that they can't offer any for this year's intake. Feel free to address these concerns of theirs.
That said, if you could wait a year you'll definetely have a better shot at scholarships for the 2019 intake.
All the best!
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