Modern Indian History
The Frontier Gandhi actively participated in

Civil Disobedience Movement
Non-Cooperation Movement
Khilafat Movement
All listed here

ANSWER DOWNLOAD EXAMIANS APP

Modern Indian History
Har Bilas Sarda was instrumental in the passage of the famous Sarda Act of 1930, which provided for

enforcing monogamy
penalisation of parties to a marriage in which the girl was below 14 or the boy was below 18 years of age
civil marriages
removal of restrictions on intercaste marriages

ANSWER DOWNLOAD EXAMIANS APP