Before preaching honesty to society, one must first nurture the same at home. Appa, an honest mathematics teacher loved his grandson Vakratund, a topper in Mathematics, nurtured on Appa’s principles. But one unfortunate day, his life shatters when he gets to know that Vakratund’s success is shaped by unfair means. ‘Walk the talk...and glory shall follow’ Appa Thosar, a renowned mathematics teacher in the Konkan embodied this principle all his life. He is extremely fond and proud of his grandson Vakratund who is a topper in Maths. To popularise this subject amongst students, Appa is trying to establish a Maths Academy. Coincidentally, Appa comes across a nerve-shattering truth – that Vakratund has been successful through unfair means. This one truth puts all of Appa’s principles under a shadow of doubt. On one side Appa has the responsibility of designing Vakratund’s future...and on the other he is remorseful that he failed in infusing good values in his own grandson. Burdened by the thought that principally he has no right to establish the Maths Academy, he thinks of abandoning the project. Battling on several fronts, Appa gets increasingly dejected...demoralised. Is Appa able to keep his life untainted? Is he able to make a new comeback in life along with Vakratund? Starting from his own home, is he successful in making students fond of mathematics? Is Vakratund able to fight and overcome his guilt? Is Mai able to reinstate her home? Siddhant (principles) – a sensitive story about moral courage and emotional turmoil.