Among the four main forms of existence of life recognized in Jainism,which one of the following is NOT included?

1. A

   Deva (gods)

   Deva refers to celestial beings or gods residing in the heavenly realms, which is one of the four traditional gatis (states of existence) recognized in Jain cosmology. It is a valid form of life in Jainism and therefore not the correct answer here.

2. B

   Yaksha (demi-gods)

   Yaksha refers to a class of nature spirits or demi-gods in Indian traditions; while they find a place in Jain mythology and iconography (often as attendant deities or sasanadevatas), they are not counted among the four primary gatis or main forms of existence of life in Jainism.

3. C

   Manushya (humans)

   Manushya denotes human beings, constituting the third of the four main forms of existence of life in Jainism, characterized by the capacity for moral choice and spiritual liberation (moksha).

4. D

   Tiryancha (animals and plants)

   Tiryancha encompasses animals, birds, plants, and microscopic organisms (lower life forms), forming the fourth primary state of existence in Jain philosophy.

Summary. Official key is (b) because Yakshas are celestial attendants rather than one of the four foundational gatis (Deva, Manushya, Tiryancha, and Naraka) that define the realms of worldly existence in Jainism.