The Indian landmass has a central location between the East and West Asia.
India is a southward extension of the Asian continent.
Lying entirely in the Northern hemisphere the mainland extends between latitudes 8°4'N and 37°6'N and longitudes 68°7'E and 97°25'E. Hence, statement 1 is correct.
India is the seventh-largest country after Russia, Canada, China, USA, Brazil and Australia by area and second-largest after China by population. Hence, statement 2 is correct.
The landmass of India has an area of 3.28 million square km. India’s total area accounts for about 2.4 per cent of the total geographical area of the world.
India has a land boundary of about 15,200 km and the total length of the coastline of the mainland, including Andaman and Nicobar and Lakshadweep, is 7,516.6 km.
India is bounded by the young fold mountains in the northwest, north and northeast.
South of about 22° north latitude, it begins to taper and extends towards the Indian Ocean, dividing it into two seas, the Arabian Sea on the west and the Bay of Bengal on its east.
India shares land borders with China, Bhutan, Nepal, Pakistan, Afghanistan in the north or north-west, and Bangladesh, Myanmar in the east. (total 7 countries). Hence, statement 3 is NOT correct.
Tropic of Cancer is the imaginary line at 23.50 degrees North of the Equator.
Tropic of Cancer passes almost through the middle of India.
In India Tropic of Cancer passes through 8 states- Rajasthan, Gujarat, Madhya Pradesh, Chhattisgarh, Jharkhand, West Bengal, Tripura, and Mizoram. Hence, statement 4 is NOT correct.