Channa said he has been voting for 22 years without problems.

CNN: Pakistan opposition see gains

Rohan Wray and his wife Channa, from Islington in north London, were accused of killing their four-month-old son Jayden in July 2009 - it was later established he had severe rickets.

BBC: What is rickets?

"This is a sign of injustice, " Channa said.

CNN: Pakistan opposition see gains