In my experience its very difficult to "make" a toddler do anything. This is the age of "NO!" afterall.
 
Of course, we don't "make", we encourage, persuade, coax and motivate. Making any task a fun activity or game young kids can play is a great way to coach a toddler.
 
Here are some activities that may help in encouraging your preschoooler to read and write.
 
What to Do
The first activities in the list below work well with younger children. As your child grows older, the later activities let her do more. But keep doing the first ones as long as she enjoys them.
 
With your toddler sitting with you, print the letters of her name on paper and say each letter as you write it. Make a name sign for her room or other special place. Have her decorate the sign by pasting stickers or drawing on it.
Teach your child "The Alphabet Song" and play games with her using the alphabet. Some alphabet books have songs and games that you can learn together.
Look for educational videos, DVDs, CDs, and TV shows such as "Between the Lions" that feature letter-learning activities for young children. Watch such programs with your child and join in with her on the rhymes and songs.
Place alphabet magnets on your refrigerator or on another smooth, safe metal surface. Ask your child to name the letters she plays with and to say the words she may be trying to spell.
Wherever you are with your child, point out individual letters in signs, billboards, posters, food containers, books, and magazines. When she is 3 to 4 years old, ask her to begin finding and naming some letters.
When your child is between ages 3 and 4, encourage her to spell and write her name. For many children, their names are the first words they write. At first, your child may use just one or two letters for her name (for example, Emily, nicknamed Em, uses the letter M).
Make an alphabet book with your kindergartner. Have her draw pictures (you can help). You can also cut pictures from magazines or use photos. Paste each picture in the book. Help your child to write next to the picture the letter that stands for the object or person in the picture (for example, B for bird, M for milk, and so on).
When you show your child letters and words over and over again, she will identify and use them more easily when learning to read and write.
 
She will be eager to learn when the letters and words are connected to things that are part of her life.

I'm not an expert but I'll venture this. Pushing at the same spot will make a bruise and create resentment. In anyone! All the people I trust in phonics, for example, always make the point that that when the child resists, you back off, start again another day. Move laterally to other topics and teach them.  Anyway, your child is too young for you to be so obsessive about one thing. The trick is to be just slightly ahead of where a child is--so that the next step looks easy. Float like a butterfly. Besides, the best thing is not to teach but to SHARE YOUR LOVE of something. A song. A poem. A typeface. A name. A hero. A game. A story....
Make your own English perfect. You will soon have to answer grammar questions!

HI I am vira again
 
thanks to both of you. Especially Windy 1 for such a nice way of explaination. Even I have tried many methods mentioned by you Windy. My son reconises all the alphabates very well but as I mentioned he is some what rluctant to write. But now I have found a new way of making him intrested in writing which i want to ahare with all mothers like me. I have prepared a small sand tub at my home and i tell him to write on it (on wet samd). He really loves it. He makes pictures and even tries to write alphabates on it. I have read about this technique from one of the child's magazine and its really working well. Also i like to admit that my own english is not so good but i am trying on it and i will surely improve on it. Thanks once agian both of you for your advice.

Children at this age are more interested in fun activities, games and anything that amuse them. So they get easily bored doing such things like writing. You should try to do some efforts & give extra time. See which things he like and love to play. So try to starting & sharing time writing those stuffs in colorful manner. With passage of time he would definitely show interest and improve a lot in writing on his own.

Hello,
 
Your son is 3 years old.  Please dont rush him.  please spend alot of time with him.  if you want him to do something.......give him good encouragement.  Ill tell you what......do you have computer?  You can go www.readingeggs.com  Go check this website out for him...I am sure this will help him out.  I know that he will love it...  Please dont scold him okay.  He just little baby boy.  I know it hard but try this site and see how it go.  It will help him.  Give him alot of encouragement.
 
Remember that every kids is different individually.  Good luck with the site that I gave you.  Please try it out with your son.  you will see the improvement.
 
Sincerely,
 
Bee