Hi! I'm a developer with experience in mapping data to Amazon's product template, including products that include variants/children. I have not used Snapdeal, but I have experience with many marketplaces (Newegg, Ebay, etc) which all tend to use similar concepts. If you provide Snapdeal's template I guarantee I can map to it. If you take a look at my reviews you'll find my customers have been very happy with the attention to detail and timeliness of my work, if awarded the project I can have the finished product to you within 2 business days.
Let me know if you have any questions, I'd be happy to answer them and discuss your project.
Thanks,
Cristian Ramirez