2026
₹300
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Most math textbooks present theorems as finished monuments, hiding the false starts that drove their creators. This book takes the opposite approach. Group theory grew from concrete puzzles about polynomial roots, geometric symmetries and number patterns, and this short guide is built around that problem-driven journey. Each chapter begins with a motivating puzzle, and a tool such as a subgroup, a coset or an isomorphism is formalised only when the problem demands it. Solved problems are drawn from premier Indian M.Sc. and Ph.D. entrance tests, including IIT JAM, NBHM and TIFR. It is a pocket companion for revising what you have already learned, not a first course in group theory. By Dr. Sourayan Banerjee (IIT Kharagpur) and Aritra Dey (TIFR Mumbai); edited by Shilpa Bera.
Bhayli makes handmade jewellery and resin décor, customised to order. Real flowers are set in resin for pendants, necklaces, photo frames and planters — some with Maa Durga at their heart — alongside oxidised necklaces with thread-ball and jhumka tassels, enamel-print earrings and a necklace inspired by Jamini Roy.
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Tagore Association works in batik, the old wax-resist way of dyeing cloth. Its stall carries batik-printed sarees in cotton and silk, bedsheets and wrap skirts, each worked by hand, so no two pieces come out quite alike.
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Potraboli makes paper goods for readers: illustrated bookmarks, among them a Durga Puja set, and the second volume of its Patu series.
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বাংলা হরফে সময় — কলকাতার নিজের ঘড়ি। · কলকাতা, পশ্চিমবঙ্গ
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The hands are busy — the first piece is on its way.
ভালো বই পড়ানোটাও একটা সংগ্রাম
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