Hi, After PGDCA, You can opt for the courses like M.Sc in IT if you are more inclined to pursue a career in teaching/ education, or MCA if you are keen to make a career in the technical stream or MBA in IT if you want to get in the management field. 

On an average graduates are paid from Rs. 14,000 to Rs. 65,000 depending up on the talent, skill and performance of the graduates in test and interviews conducted by the government authorities.

Scope outside India is good as compared within India.

All the best!