what were the similarities & dissimilarities between these countries,the countries are India, china and pakistan when they  started with their development strategies?

All the three basis have been extensively covered in the study material so available on our website. Refer to the link below and scroll down to the last chapter of Comparative Economic Development.

https://www.meritnation.com/cbse/class11-commerce/studymaterial/economics/Indian Economic Development/1_13_16_442