The most profitable small scale industry will vary from one region to another. Some of the common small scale businesses that are quite profitable include stationeries, export business, law firms, accounting services and health specialists.
farming
mining
Oil.
Textiles
Weapons/military sales
The season that is most profitable for those in the formal wear rental industry would have to be the spring when most people are planning or having their weddings.
Dunlop
The industries in India which are organised on a small scale and produce goods with the help of small machines, hired labour and power, are the small scale industries . In India, the investments required should not be more than Rs. 1 Crore for small-scale industry
i think they are agriculture, industry, and tourism
If considered, tobacco and sugarcane are cash crops. If grown on a large scale they give a lot of profit as the output. On a small scale, they are enough to fulfill the needs of the farmer and some extra profit.
Pei's architecture was the most profitable industry before he became a Canadian citizen. He benefited immensely from these activities. This was primarily due to the fact that he was a renowned architect at the time.
food business