Estrus is the stage of the reproductive cycle in which the dog can become pregnant; sometimes a dog that is in estrus is said to be in heat or in season. On average, puberty or sexual maturity is reached at about 6 months of age, but this can vary by breed.
A small scale enterprise is a privately owned and operated business, characterized by a small number of employees and low turnover. A small enterprise usually only shares a tiny segment of the market it operates in.
A successful small scale industry will be/become big. People in India call an industry 'small scale' because the government defines certain industries as such. They are not reflective of size. The government can at any time declassify a small scale industry and allow larger players to enter that space. The Sweedish giant is investing over 10000 crore in India.