I want to be an IAS.So what is the best way or the best app to preparing.
You can go through the following steps in order to initiate your UPSC preparation;
Be well acquainted with UPSC Syllabus,learn it by heart this is the first and most important step to crack this exam, to know what to read and what to skip.
Have an integrated approach for both Preliminary and Mains while preparing, never ever make a differentiation between prelims and mains, because nowadays what's happening is even in prelims, UPSC frame questions based on Mains syllabus.
Make a timetable,set targets on a daily,weekly and monthly basis,that's the only way to complete this extensive syllabus.
Another equally important thing is to start reading any newspaper like The Hindu, or Indian Express on a regular basis to be updated as well as gaining knowledge which shall be highly useful to you in future exam preparation part. Put a more emphasis on editorial part, it will not only broaden your perspective but help a lot in answer writing,and make sure whatever opinion you form it should be well balanced. You can also make notes of this,it'll be very useful in answer writing.
When it comes to reading books ,start with basics, for each subject, you can do with NCERTs for this. This will build your foundation strong,as you progress, move on to other relevant books as mentioned below;
For Prelims, refer the following books:
NCERT Class XI and XII
India's Struggle for Independence by Bipin Chandra
For Indian Culture, refer art and culture by Nitin Singhania
NCERT Class VI to XII
GC Leong's Physical Geography
NCERT Class XI
Indian Economy by Ramesh Singh
International Relations & Polity ;
NCERT XII Political Science with current affairs
Indian Polity by Laxmikanth
Verbal and Non-Verbal Reasoning by RS Agarwal
M Tyra's Quicker Maths
Coming to Mains Exam, you can refer the following books for four General Studies Paper;
GS I - For History , Class XI NCERT book with India's struggle for Independence by Bipin Chandra,India after Independence by Bipan Chandra,History of Medieval India by Satish Chandra
For Geography refer World Geography and Geography of India by Majid Hussain, GC Leong's Physical and Human Geography with NCERT Class XI book.
For GS II - Polity and International Relations , refer Indian Polity by Lamikanth,India's Foreign Policy by Rajiv Sikri
For GS III - For Economics refer Indian Economy by Ramesh Singh, read ARC report along with Economic Survey and Fiscal Budget.
For GS IV - For Ethics refer a book named Lexicon by Niraj Kumar, also you can go through study material of IGNOU.
Remember to keep resources minimal always, read one book many a times instead of many a book one time
Start practicing answer writing in advance, even in a little way, Writing mains is a huge task, for nine paper it requires immense practice along with knowledge. There are many sites which provide questions on daily basis you can avail that. Try to give a holistic viewpoint while answer writing by providing political,economical and social aspect. You can use Insights,IASBaba to name a few,from the vision is site you'll get answer copies of toppers so do go through them to get an overall idea about format in the form of introduction,body,conclusion.
Practice previous year question paper which you can get from the site of UPSC,in addition mock papers, and test series which you can get it from any of the sites exclusively dedicated to UPSC, it's highly important to evaluate your performance while doing so. You can take the help of the Internet, there are many good websites and YouTube too can help you a lot in this preparation process.
To become an ias officer you need a graduation degree first of all and then you need a lot of hard work and prcatice to clear ias exam.
The study material atvour official website is definitely a good guide to crack the exam. You can check it at our official website
I hope this help