Who among the following reserves the right to initiate the Constitutional Amendment?

Consider the following statements:

1. While cold currents are usually found on the west coast of the continent, warm currents are found on the east coast
2. While Kuroshio is a warm current, Oyashio is cold water current

Which of the above statements is/are correct?

Consider the following differences between Hydrogen and Helium gases:

1. While Helium is a non-flammable gas, Hydrogen is a flammable gas
2. Helium is lighter than Hydrogen gas

Which of the above statements is/are correct?

Consider the following pairs of books with their authors:

1. Indica - Megasthenes
2. Harshacharita - Harsha
3. Rajatarangini - Kalidas

Which of the above is/are correct?

As per recent survey, which of the following pollutants has been highly responsible for the pollution of groundwater in the Indo-Gangetic Basin?