Transit of Mercury: Planet to appear as a black dot on the sun

Mercury will be seen as a small black dot travelling from one limb of the solar disc to the other, which is a rare event. (Source: NASA)
Planet Mercury will be seen as dot on the solar disc from several parts of India on Monday, a rare astronomical phenomenon that occurs only 13 times in a century.
The planet will be seen as a small black dot travelling from one limb of the solar disc to the other as the Sun, Mercury and the Earth will be lined up in one plane.
The last transit of Mercury had o