When was the convention of Samp Sabha held on Mangarh hill situated on the border of Rajasthan and Gujarat, during which 150 people died due to firing by the army?

When was the convention of Samp Sabha held on Mangarh hill situated on

1.	When was the convention of Samp Sabha held on Mangarh hill situated on the border of Rajasthan and Gujarat, during which 150 people died due to firing by the army?
A.	in 1921
B.	in 1908
C.	in 1932
D.	in 1942
Answer» C. in 1932