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News: India has 2,967 tigers, a third more than in 2014, according to results of a tiger census. India has achieved the target of doubling tiger population four years before the 2022 deadline. State-wise tiger count ● According to the census, Madhya Pradesh saw the highest number of tigers at 526, closely followed by Karnataka at 524 and Uttarakhand at number 3 with 442 tigers. ● While Pench Tiger Reserve in Madhya Pradesh recorded the highest number of tigers, Sathyamangalam Tiger Reserve in Tamil Nadu registered the “maximum improvement” since 2014. ● Chhattisgarh and Mizoram saw a decline in their tiger numbers while tiger numbers in Odisha remained constant. All other states witnessed a positive trend. About All India Tiger Estimation ● The tiger count is prepared after every four years by the National Tiger Conservation Authority (NTCA) provides details on the number of tigers in the 18 tiger reign states with 50 tiger reserves. ● However, this time, the census also included data collected from the rough terrains of north-eastern states which was not possible due to logistic constraints before. ● The entire exercise spanned over four years is considered to be the world's largest wildlife survey effort in terms of coverage and intensity of sampling. ● Over 15,000 cameras were installed at various strategic points to capture the movement of tigers. This was supported by extensive data collected by field personnel and satellite mapping. ● Taking a step further, authorities have attempted to digitize the records by mandating the use of a GIS based app called M-STRiPES (Monitoring System For Tigers-Intensive Protection and Ecological Status) developed by Dehradun-based Wildlife Institute of India.