Hii Vijay kumar,

There will be no problem at all.You can study whatever the book you wish.but you should be aware of the syllabus.The syllabus for GATE exam for any Branch is same every year.So you should be able to complete all the topics and chapters.

The chapters, Topics will be same in both the Books.What makes the difference is the type of Questions,level of questions and updated formulas.Obviously GATE 2022 book will be better than GATE 2019.But you should not waste time rather than Clear all the topics and chapters from GATE 2019 book and solve the Question papers.

You can start your own preparation with GATE 2019 book and after that when the  GATE 2022 book is available in the market then purchase that and sove those questions also.Know the advanced tricks,formulae and methods.

Thank you.

There's a difference of 3 years between 2019 and 2022 and every year the course has been upgraded, new technologies has been introducing so for an exam like gate your preparating should be up to date. Obviously you can go through old books but I would recommend you to also keep an eye on new updates in the syllabus and new model papers.

Thank you

Yes you can.More or less syllabus is same.You have to checkout new question styles by solving new papers or mock tests etc.By these you can prepare with old books.

Best of luck.