The Ministry of Environment and Forests (MoEF) on 25 May 2017 issued a series of notifications under the Prevention of Cruelty to Animals Act, 1960. It is now mandatory for all dog breeders and their kennels/ establishments to register themselves with the Animal Welfare Board of the respective state.
For Dogs: The Dog Breeding and Marketing Rules define the requirements to be met by the breeders and the establishments used for breeding, such as those related to health, housing facilities and conditions for sale. Dog Breeding and Marketing Rules 2017 appear in the Gazette of India here
For Cattle: Livestock markets rules recommends an animal market monitoring committee to be formed in every district, headed by the district magistrate. There are also extensive conditions to ensure that smuggling of cattle is checked. Livestock Market Rules 2017 can be read in the Gazette of India here
So far no regulations have existed to check how many animals are sold at animal markets and for what purposes.