if it is written that u have to write a diary entry in 50 -60 words is it necessary to write in the word limit...because in a question u had wrote this but the word are extending 60...???

It is advisable to write the diary entry keeping in mind the word limit between 50-60 words. However, it is still acceptable if it is extending more than 60 words. But, you should try to be more precise and to the point using best of your creative skills and imagination.