By which Constitutional Amendment Act was Sikkim granted full statehood in India?

Tenth schedule was added in constitution by which amendment act?

Which Constitutional Amendment Act provided constitutional status to Urban Local Bodies in India?

Mizoram has been granted the status of a State by which of the following Constitutional Amendment?

Which Constitutional Amendment Act introduced the GST (Goods and Services Tax) in India?

By which Constitutional Amendment was the term 'Socialist' included in the Preamble?