NO
Nair is one of the caste in Kerala. All human are same. In that sense, you can not say one caste is forward or other is backward. If you see the caste system, Nairs are considered as Shudras who comes at the bottom in Hindu varna(color) system. First is Brahmins and then Kshathriyas(Mainly Verma) and then Vaishyas(Who does trace) and then Shudras who work for all the other three groups.
The Shetty community of Karnataka I think is the same as Chetty or Chettiar of Tamil Nadu.I think they belong to the same class as well as caste of people.The Nairs of Kerala also I think fall in the same category.
Yes they are from the same caste
Easter in kerala is exactly the same as in all the other countries.
After Brahmins Saiva Vellalar(Saiva Pillai) is the highest caste which ranks in Kshatriya status. Almost all Tamil Kings were Saiva Vellalars who followed Saiva Siddhanta. Ettu Veetil Pillai and Travancore Pillai Community is just an Migration of Tamil speaking Saiva Pillai Pandyan Kingdom and Chera Kingdom. Saiva vellala or Saiva Pillai is a Forward Caste according to both TN and KL Government. Most of the rulers were from this caste. Saiva Pillai or Saiva Vellalar is Kshatriya who migrated with Rishi Agastya during Treta Yug along with Brahmins. Genes in Saiva Vellala Or Saiva Pillai community is north Indian Aryan Gene which is same in Brahmins. All Non Vegetarian Pillai communities in TN are sutras. For respect many low caste added Pillai as their Surname. But they are fake. Saiva Pillai is Aryan Kshatriya Forward Caste who are pure vegetarian. Original Saiva Pillai/Saiva Vellala is Kshatriya.
At the same time of End of World. But the land mass called Kerala will be there forever.
No, ofcourse not. They are a subcaste to khatri (punjabi: meaning kshatriya) caste. Kind of same as Kapoor. So infact they are upper caste.
No
gujar caste kaun si comunity me aate hai
Yes they are same these are both of Kurmi, Hinduism Caste..mainly in Jharkhand, W.Bengal, Orissa & Bihar.
Nope. Hatagar caste in karnataka comes under lingayat. and hatkar caste in maharastra comes under Dhangar