
First of all, never buy a puppy which is less than 42 days old. Every dog has to go through a specific weaning period (breast feeding) of 42 days, failing to which can lead to improper growth and malnutrition.
On the first night your puppy will feel uncomfortable, missing his/her mother and other littermates. It is advisable to fetch a cloth or a Nyla bone (artificial fiber) from the breeder which was in close proximity with the mother and other littermates. The dog will feel comfortable when the cloth is placed at his sleeping quarters/crate merely by the scent of his family members. Keep sufficient amount of food and water next to him.
Your puppy can be determined or co-operative. Make a point of never scolding your dog especially when he/she is whining. You will just unnecessarily end-up scaring the pup resulting to severe behavioral problems. Instead make a more soft-hearted approach to settle him down.
Never bathe a dog before he/she completes 4 months. Also never tie your dog with body belts unless he/she is completing 3 years of age. This can lead to severe growth problems of various organs at specific areas.
Like a child, even your puppy should be trained with his/her toilet habits. A dog tends to pass urine / excreta in the same place where he/she would have done it before, because of the odor and the association he makes – that it is the right place to do it. To avoid this, wash that spot (on the floor) with caustic soda. A dog will indicate with a number of desperate symptoms like digging the floor/bed before passing the stools. The ideal move is to take your dog immediately into the toilet. Slowly but steadily it will become his/her habit to pass his stools inside the toilet.
Dogs are inherently nosy and extremely indomitable, once they have put their mind to something they get carried away with the situation. It solely depends upon the owner, whether he wants to encourage/discourage his behavior.
Puppies tend to go for a rampage for tearing your sofa-sets and sandals during the first few months of teething. Try to fetch maximum amount of soft toys, chews and nyla bones, which would keep his/her activities at bay. Nowadays calcium bones are also largely available to provide your dog with appropriate minerals essential during teething and old-age.
Occasionally take him for a stroll and show him/her the stray dogs. This will prevent him/her from barking at them, once he is grown up. Never provoke your dog to pull and tear any cloth/object. This will make him more aggressive and in future he/she will get a kick to do similar things and even attack if necessary.
Before all this, vaccinate your dog with 7 in1 and Anti-rabies serum at regular intervals, whenever necessary to keep disease/epidemic in check.