Initial footsteps of a ecoomerce start up

ecommerce

#1

I want to start an e-commerce business in food industry. I want to develop a a e-commerce website, since i am new to this area i am unaware where from where to start my journey.
Can anyone help me how to develop the site, are there any resources or service providers, legal requirements etc. If you have any resources please let me know.
Regards, Rambabu.