Kargil Vijay Diwas is celebrated on _____.

Consider the following statement(s):
$1.$ $5\mathrm{th}$ June is a day that stimulates awareness of the environment and enhances political action.
$2.$ From $5\mathrm{th}-6\mathrm{th}$ June, $1972,$ the UN Conference on the Human Environment was held.
$3.$ The first World Environment Day was held in $1974.$

Which of the statement(s) given above is/are incorrect?

Which of the following pairs is/are correct?
$1.$ BASIC: Brazil, Africa, Sudan, India, China.
$2.$IBSA: India, Brazil, South Africa.

Consider the following statement(s) about the National Youth Day.
$1.$ It is celebrated on $20\mathrm{th}$ January every year.
$2.$ Since $1985,$ this day has been celebrated.
$3.$ It is celebrated on the birthday of Swami Vivekananda.

Which of the statement(s) given above is/are incorrect?

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?