Step 1: Understand the role of NGOs in India.
Non-governmental organizations (NGOs) in India play a significant role in various sectors, including consumer rights, advocacy, and public interest.
Step 2: Evaluate the options.
- "Voice" and "Common Cause" are both prominent NGOs in India that advocate for consumer rights, social causes, and government accountability.
Step 3: Conclude.
The correct answer is that both "Voice" and "Common Cause" are NGOs working in India.
Final Answer:
\[
\boxed{\text{Both (A) and (B)}}
\]