So far 194 ITDPs/ITDAs have been delineated in the country in the
states of Andhra Pradesh, Assam, Bihar, Gujarat, Himachal Pradesh, Karnataka, Kerela, Madhya Pradesh, Maharashtra, Manipur, Orissa, Rajasthan, Sikkim,
Tamil Nadu, Tripura, Uttar Pradesh, West Bengal and Union Territories of Andaman & Nicobar Island and daman & Diu. In Jammu and Kashmir though no ITDP has been delineated yet the areas having ST Population in the State are treated as covered under the TSP strategy. In eight states having scheduled areas the ITDPs/ITDAs are generally co terminus with TSP areas. The ITDPs/ITDAs are headed by Project Officer though they may be designated Project Administrators or Project Directors.
Modified Area Development Approach (MADA) pockets
These are identified pockets of concentration of ST population containing 50% or more ST population within a total population of minimum of 10,000. The total number of MADAs identified so far in the various TSP States is 259. Generally, MADA pockets do not have separate administrative structures to implement development programmes. The line Departments of the State Govt. are expected to implement development programmes in MADA pockets under the overall control of the District authorities.
CLUSTERS
These are identified pockets of tribal concentration containing 50% or more ST population within a total population of about 5,000 or more. As in the case of MADA pockets, there are no separate administrative structures for Clusters. So far 82 Clusters have been identified in various T.S.P. states.
PRIMITIVE TRIBAL GROUPS(PTGs)
Primitive tribal groups are tribal communities among the STs who live in near isolation in inaccessible habitats. They are characterised by a low rate of growth of population, pre-agrcultural level of technology and extremely low levels of literacy. So far 75 PTGs have been identified.