Mahatma Gandhi and Rabindranath Tagore did not define India as a 'nation', because they were _____.

Consider the following statements:
$1.$ In India, there are several days declared as Martyr's Day that honour those recognized as Martyrs for the nation.
$2.$ The most prominent Martyr's Day at the national level is $30\mathrm{th}$ January.
$3.$$30\mathrm{th}$ January is celebrated as Martyr's Day as its marks the assassination of MK Gandhi in $1948$.

Which of the statements given above is/are correct?