Google has partnered with service providers in India to let you order your food or a book a table at a restaurant from within the Google Search app on Android and iOS. Now, when you search for a restaurant, you will see the option to book a table there or order food online. For the restaurant booking, Google has partnered with Dineout and Bytplus, and for ordering food, Google has partnered with Zomato and Swiggy. For now, this service only works with select restaurants in select locations. It will be rolled out in other regions and for other establishments in future. Source
Source: http://www.gsmarena.com/google_now_lets_you_order_out_or_book_a_table_from_search_in_india-news-19835.php