Which of the following are the unitary features of the Indian constitution?
1. Integrated audit machinery
2. Written constitution
3. Rigid Constitution
4. Veto over state bills
5. Bicameralism
6. Emergency Powers
Select the correct answer using the code given below:
1
2, 3 and 5 only
2
1, 4 and 6 only
3
1, 2, 3 and 5 only
4
4 and 6 only