Explanation:

The northern boundary of the Peninsular Block may be taken as an irregular line running from Kachchh along the western flank of the Aravali Range near Delhi and then roughly parallel to the Yamuna and the Ganga as far as the Rajmahal Hills and the Ganga delta. Statement 1 is correct: The Deccan Plateau is higher in the west and slopes gently eastwards. The Plateau also has extensions in North Eastern India, known as the Meghalaya Plateau, Karbi-Anglong Plateau and North Cachar Hills. The northeastern parts are separated by the Malda fault in West Bengal from the Chotanagpur plateau. Statement 2 is incorrect: Since the Cambrian period, the Peninsula has been standing like a rigid block with the exception of some of its western coast which is submerged beneath the sea and some other parts which changed due to tectonic activity without affecting the original craton. As a part of the Indo-Australian Plate, it has been subjected to various vertical movements and block faulting. The rift valleys of the Narmada, the Tapi, the Mahanadi, and the Satpura block mountains are some examples of it.