This book is written strictly according to syllabus of Maharashtra State Board of Secondary and Higher Secondary Education Pune,which is implemented from June 2007. Silent feature of this book :

• Subject matter is written in simple and lucid language.
• Neat figures and illustrative examples in day to day life are given to explain the conceptual part.

This book ,Modern India has been written in accordance with requirements of the history syllabus,prescribed by the Maharashtra State Board for Secondary and Higher Secondary Education,for 12th standard. It follows the design of the textbook given by the Board. The book is written to make the subject interesting and simple both for students and teachers.

This textbook of Mathematics for std.XII is written as per the New Syllabus (2007) of Mathematics State Board of Secondary and Higher Secondary Education .We are glad to present the book before teacher and students.

This book is an attempt made by the authors to help students in understanding the technique of solving problems. It is rather unfortunate that many students consider Physical Chemistry a difficult subject because of the need to solve problems. If this misconception is removed,from the minds of students,one of the aims of the book would be fulfilled.

Problems,both solved and unsolved are so arranged in the book that readers will encounter more and more challenging problems when they proceed with a chapter. Necessary theory has also been adequately deal with at the beginning of each chapter . Use of S.I. Units has been made, wherever necessary.

It gives us great pleasure to bring out the book of `Organisation of Commerce and Management `for the students of Standard XII. The book is written strictly according to the new syllabus and guidelines provided by the Maharashtra State Board of Secondary and Higher Secondary Education,Pune with effect from the academic year 2007-08.

This book has tried to describe many important issues of environmental education like biodiversity,environmental management,sustainable development,sustainable agriculture. These are the issue in which the young generation to think and act upon.

In this book "log " is used for logarithm to the base 10 and "/n" for those to the base "e". Student are advised to carefully go through the solved numerical problems and then solve exercises at the end of each chapter. Special emphasis has been given to the increasing role of the SI(The systems International ,or the International system of Units or scientific International,abbreviated SI )Units.

Psychology is an important subject in the faculty of Arts as well as Science not only in Junior College but also at higher levels. Psychology is also a subject in Engineering , Medicine, Management , Pharmacy, Commerce, etc. The revised syllabus has been introduced from the academic year 2007-2008 and contains many interesting topics as can be seen from the syllabus as well as content of this book ..

This is a textbook that fits the way Organic Chemistry should b taught. It interacts with the student and is humorous as well. It reads like a novel and teaches like a text. It has a superb focus ,a fresh approach ,and an easy readability .Emphasis is on reasoning rather than memorization.

More emphasis is given for illustrative example in practical life,explanation of wide applications of Physics and related basic Principles. Number of solved problems,summary at the end of each chapter ,good question and numerical problems have been included in this book .

Simplex table method of solving a linear programming problem (LPP) is a newly introduced topic in the syllabus . We have tried to put the theory of simplex table method with full explanation. Short - cut - method of solving LPP by simplex table method is also given in appendix.

While writing and explaining the concepts ,we have kept in mind the difficulties faced by the concepts,we have tried our best to explain the concepts in a simple and lucid manner and with illustrative examples. Sufficient care has been taken in order to maintain the continuity of the topics studied up to 11th and to be studied in 12th th standard. We hope this book will help to Strengthen the base for them to pursue the studies in professional and academic education at the higher level.

Biophysics is an interdisciplinary subject. This present text discusses the various aspects of Biophysics,giving approximately equal emphasis to these major aspects. It has been thus possible to show the inter -relationship of the different aspects of the subject in a coherent framework .

In view of the changing trends,the syllabus gives more stress on and due weightage to the applied aspects of biology while retaining the essential topics from the basic biology.Therefore ,the syllabus strikes a right balance between the applied and the basic aspects of biology.

The syllabus has been meticulously followed without sacrificing the details. Definitions,distinctions,diagrams, tables etc. are included to make the subject easier for the students to study. The international unit(SI units) have been used in the physical chemistry section. The introduction of enterprise education at the end of each chapter makes the subject interesting to the students.

This is a textbook that fits the way Chemistry should be taught. It interacts with the student and is humorous as well .It reads like a novel and teaches like a text. It has superb focus ,a fresh approach ,and an easy readability. Emphasis is on reasoning rather than memorization.

Each Chapter begins with a brief introduction stating its scope. The various concepts have been developed in a clear,logical manner and the Laws have been given at the end of the relevant subunits. Summary,review questions and unsolved problems are given at the end of each chapter . This will help the students to test their understanding of the subject.

This Book adopts a fresh and novel approach to the study of Accountancy. It has been written in a `Teach Yourself “ strictly following a student -friendly approach,and is essentially meant to serve as a tutor at home.

• Uniform format of chapter : Each chapter has been uniformly organised under four heading, viz., Text supported by suitable Illustrations,Solved Problem ,Theoretical Questions and Practical Question.
• Exhibit : Over 50 Exhibits to acquaint students with various accounting treatment and formats.
• Illustration :Over 150 Illustration to aid better understanding of the text.

The subject matter presented in this book is in simple language and lucid style. This book will help the students to understand this subject clearly. At the end of each chapter sufficient exercises have been given for purpose of self study.

This text book, is designed to serve as a text book for students of XII Standard of Maharashtra State. Throughout the book numerous worked examples of different nature have been incorporated in order to help the students to understand various concepts practically. The book also contains exercises with problems at the end of each section,for students to practice. The problems have been carefully selected and properly graded and answers have been provided at the end of each exercise.

This text book, is designed to serve as a text book for students of XII Standard of Maharashtra State. Throughout the book numerous worked examples of different nature have been incorporated in order to help the students to understand various concepts practically. The book also contains exercises with problems at the end of each section,for students to practice. The problems have been carefully selected and properly graded and answers have been provided at the end of each exercise.

The matter in every chapter has been revised and questions in every chapter has been witten, keeping in mind the Board Question Paper Format.We have incorporated the suggestions received from the teachers of different collages and have simplified the matter for the benifit of the students and teachers.

The whole subject matter is written in lucid language,which is very easy to understand & reproduce. Each unit & sub-unit is written in accordance with model answers expected by examiners. The symbols & signs used for different physical quantities are as per recommendations at national and mathematical steps involved in derivation are neat and systematic. Solved and Unsolved Numerical problems are coupled with large numbers of MHT-CET Question with proper Hints and Answers.

While writing and explaining the concepts ,we have kept in mind the difficulties faced by the concepts,we have tried our best to explain the concepts in a simple and lucid manner and with illustrative examples. Sufficient care has been taken in order to maintain the continuity of the topics studied up to 11th and to be studied in 12th standard. We hope this book will help to Strengthen the base for them to pursue the studies in professional and academic education at the higher level.