evidence: Sikhs are the largest group in Punjab (total population 28 million, or 2.8 crore), which is the only state where a religious group other than Hindus, Muslims or Christians forms a majority. The populations of two states, Arunachal Pradesh (1.4 million, or 14 lakh) and Manipur (3 million, or 30 lakh), are religiously diverse, with substantial shares of several religious groups and none approaching a majority. In Arunachal Pradesh, for example, where 39% of the population falls into the "other" category of smaller religions, many people identify as Donyi-Polo. Meanwhile, in the state of Sikkim, which borders Tibet, 27% are Buddhists. [...] Hindus also had their biggest percentage point changes in the sparsely populated Northeast, declining by 3 points or more in Arunachal Pradesh (down 6 percentage points to 29%), Manipur (-5 points to 41%), Assam (-3 points to 61%) and Sikkim (-3 points to 58%). Muslims, too, experienced their biggest change in the Northeast, in Assam (+3 points to 34%).