There are several small businesses in India that have very high profit margins, including:
Retail businesses that sell luxury goods, such as high-end watches, jewelry, and designer clothing.
Service businesses, such as wedding planning, event management, and personal training.
Online businesses, such as e-commerce and digital marketing.
Consulting businesses, such as financial, legal, and management consulting.
Food businesses, such as organic food products and gourmet restaurants.
Manufacturing and export businesses, such as textiles, handicrafts and artisanal products.
It is worth noting that the margin of a business depends on the industry and the specific business, and also can vary depending on the location and competition