How many members were there in the drafting committee of Indian Constitution?

7

The correct answer is Option 2 - 7

The Drafting Committee of the Indian Constitution, chaired by Dr. B.R. Ambedkar, initially consisted of seven members. These members were:

Dr. B.R. Ambedkar (Chairman)
Alladi Krishnaswamy Iyer
N. Gopalaswami Ayyangar
K.M. Munshi
Syed Mohammad Saadulla
B.L. Mitter
D.P. Khaitan

Later, the Committee was expanded to include additional members, bringing the total to 22. However, the core group of seven members played a significant role in the drafting process.