To be conducted by the Ministry of Social Justice and Empowerment in collaboration with the National Drug Dependence Treatment Centre (NDDTC) of AIIMS, the survey will provide national and state level estimates of proportion and absolute number of people who indulge in drug abuse, sources said.
The two-year-long survey will also map the presence of services and interventions for drug dependent individual and identify the gaps in service delivery.
"The earlier survey did not provide any data on prevalence of substance use at the level of different states in India, neither did it provide data on prevalence of drug use among women population. Since then there have been small scale studies focused on specific geographical areas or population. But there have been no nation-wide surveys.
"Thus the exact dimensions of this problem in India remain unknown," a senior Ministry official said.
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The government's decision to conduct the survey comes in the wake of a recent survey 'Punjab Opioid Dependence Survey' (PODS) which estimated that there are about 2.3 lakh opioid-dependent people in the state, which consumes drugs worth Rs 7,500 crore every year.
According to the official, one of the major programming obstacles is inadequate information about the extent and scale of alcohol and drug dependence in the country.
"Additionally, India is expected to report to international agencies (like United Nations Office on Drugs and Crime and World Health Organisation) on questions related to data on extent of substance use in India. In such instances, government has to rely on the old survey published in 2004," he added.
The project is estimated to cost over Rs 22 crore.
Besides, there will be focused thematic studies on
specific topics or vulnerable populations which will include studying the pattern of drug abuse among homeless, prison residents, transgenders, female sex workers, transport workers (truck, taxi drivers, cleaners ets), said Dr Ambekar.
The questions during the interview will pertain to socio- demographic data, substance use pattern, consequence of substance use, availability of services and knowledge and attitude towards substance use.
The survey was jointly conducted by the Society for Promotion of Youth and Masses and NDDTC, AIIMS.