Hello Nikhil -
There should be plenty of literature available around basics of watermelon cultivation. We have one season of Watermelon (another hybrid similar to Syngenta) under our belt. We have shared some information on our blog - saverafarms.com.
Our harvest was as expected, not anything to write home about but quite healthy. With that said, our challenges were in the post-harvest processing and marketing. At the conclusion we tried and were able to sell most in the local retail market - something I would not recommend to everyone. I am not sure of your background (agri or otherwise) but securing a go-to market strategy is most vital. A big issue facing our agri-prenuers today is not as much of cultivation but profitable marketing arrangements.
Farmgate sales will most likely produce disappointing profits. Agents / brokers will exploit your position of weakness once the produce is ripe. Ensure you have an end customer, preferably a volume consumer, lined up before you break ground for your crop.
I do not want to be a kill-joy but you want to reap what you sow and sell what you reap!
Good luck and keep us posted of your progress.