Complex sentence: If he withholds his assent, the bill is dropped also known as pocket veto.Pocket veto albiet is not written in the constituttion but has only been excersied once by President Zail Singh in 1986 over the postal act where the govt wanted to open postal letters without warrant.
Split into simpler sentences: If he withholds his assent, the bill is dropped, which is known as pocket veto. The pocket veto is not written in the constitution and has only been exercised once by President Zail Singh: in 1986, over the postal act where the government wanted to open postal letters without warrant.