Hello candidate,

As per your question,

WAG-7 is one of the most successful locomotives of Indian railways currently serving both freight and passenger trains for over than 28 years.

The name WAG -7, Broad gauge(W), Alternate current (A),Goods traffic (G) engine, 7th generation (7).

The number of CTFs were three in WAG -7(According to me).

Hope this will help you,

Thank you.