Information technology

Dear Usha,

For information technology its very imporatnt to have good comand on understanding of IT .For  it u should start reading from RM Jha books available in market as it will make your base clear .

https://www.youtube.com/playlist?list=PLaGkcEAhgIRvcApiqaIy7_wLzexX4ksCx     IT  chapter 5 its very helpful to u plz see

dont worry

https://mastermindsindia.com/ipcc35.php       short notes for ITSM

Refer Manish Valecha. Best written book and easy to remember and complete. It also gives memory code which will help you remember the topic easily. He is the best seller of CA final ISCA. Check all books before you buy.