Snake with strange head
The picture looks like it's from the Cerastes genus. It looks similar to a head shot of Cerastes Cerastes (Saharan horned viper) shown on Wikipedia:



In fact, the incident you describe is also reported in Wikipedia's Cerastes Cerastes article since it could be the first sighting in Pakistan. However, I sincerely (and respectfully) doubt that this snake was producing the "baby crying sounds". According to Wikipedia they produce a "rasping sound" when threatened. 

I'm not sure that the specimen in your photograph is actually Cerastes Cerastes but the genus should be correct.