You dont mention whether you have done obedience training or your pet well socialised to be a good, well-controlled companion. First you may start with a suitable collar, harness, or head halter to use with the leash on your dog or you may try a Gentle Leader or Halti head collar on your dog. This may help the dog experience in walking under control around other dogs or people. Once you develop confidence, take your dog walking separately in a suitable area or pick places to walk where there will not be loose dogs. Training with your dog in a good class will give you the best chance of developing your ability to handle your dog as much as possible.
Question by - Bobby, Bijnor