With reference to the Alvars and Nayanars, which of the following statements is correct?
1
Alvars are those who were disciples of Lord Shiva.
2
Nayanars were those who claimed themselves as the followers of Vishnu.
3
They traveled place to place and would sing devotional songs in Sanskrit in the name of Shiva or Vishnu as the case may be.
4
They challenged the caste system.