No, Kalwar is not listed as OBC in Punjab. It is in General category.
KARNWAL surname belongs to Baniya Trader caste, which is not one of the Schedule Caste (Untouchables) in North India. Karnwal/Jaiswal are baniya trader which are called Kalwar vaish .They are follower of Sahstrbabhu Arjun. Few schedule cast are used this surname why i do not know.
yes its an obc caste
Jaiswal or Jayswal or Jayaswal (Hindi: जयस्वाल or जायसवाल) is a geographical title shared by several communities in India including"Jaiswal BrahminsJaiswal JainsJaiswal SwarnkarJaiswal RajputsJaiswal Kalwars
details of obc caste
Yes Chauhan caste is OBC and are actually Nai (barber) caste.
OBC
JAISWALS ARE NOT SCHEDULED CASTE!Jaiswal or Jayasvāla or Jayaswal (Hindi: जैस्वाल, जयस्वाल or 2) is a designation shared by several communities in India including"Jaiswal BrahminsJaiswal JainsJaiswal RajputsJaiswal KalwarsSome Jaiswals relate themselves with baniya or mahajan community, since becoming followers of Vallabhacharyaji, adopting Vaishanavism nearly 300 years ago.
bc-backword caste obc-other backward caste
Caste distinctions can vary by region and community in India. The term "ghirth" does not appear to be a common term for a specific caste. It is important to avoid making assumptions about someone's caste based on their name or surname.
obc
No . They belong to OBC .