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Option 1: Andhra Pradesh is not estimated to have the largest coal reserves in India.
Option 2: Bihar (including the newly created Jharkhand) is estimated to have the largest coal reserves in India. Jharkhand is known for its rich coal deposits, contributing significantly to the country`s total coal production.
Option 3: Madhya Pradesh (including the newly created Chhattisgarh) is not estimated to have the largest coal reserves in India. Although Chhattisgarh does have considerable coal reserves, it is not the largest.
Option 4: Orissa is also known for its substantial coal reserves, but it is not estimated to have the largest coal reserves in India.
The correct answer is option 2, Bihar (including the newly created Jharkhand), which is estimated to have the largest coal reserves in India.