{"id":295670,"date":"2026-02-04T17:54:29","date_gmt":"2026-02-04T12:24:29","guid":{"rendered":"https:\/\/www.aakash.ac.in\/blog\/?p=295670"},"modified":"2026-02-04T17:54:29","modified_gmt":"2026-02-04T12:24:29","slug":"ino-2026-answer-keys-released","status":"publish","type":"post","link":"https:\/\/www.aakash.ac.in\/blog\/ino-2026-answer-keys-released\/","title":{"rendered":"INO 2026 Answer Keys Released \u2013 Official Solutions for All Subjects"},"content":{"rendered":"<p><span style=\"font-weight: 400;\">The Indian National Olympiad 2026 was the stage of India&#8217;s Science Olympiad program. This program is really important for science students in India. The Homi Bhabha Centre for Science Education, which is part of TIFR, organised the Indian National Olympiad 2026 for science subjects. These subjects included Astronomy, Chemistry, Physics, Biology and Junior Science. The INO 2026 took place on January 31 and February 1, 2026.<br \/>\n<\/span><span style=\"font-weight: 400;\">After the exams of the Indian National Olympiad, the Homi Bhabha Centre for Science Education releases the official answers a few days later, at the start of February, after the test dates. The Indian National Olympiad gives us a chance to look at the answers and send in our comments before they make the answers final and announce the results.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">INO 2026 Answer Keys (All Subjects)<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The INO question papers and answers for Astronomy and other science subjects like Chemistry, Physics, Biology and Junior Science were put on the HBCSE website after the exams. These answers help the students who took the Indian National Olympiad check their answers and guess what score they will get before the results are out, for the Indian National Olympiad.<\/span><\/p>\n<p><span style=\"font-weight: 400;\">You can get to these things by:<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Visiting the official <a href=\"https:\/\/olympiads.hbcse.tifr.res.in\/science-olympiad-2025-2026\/\" target=\"_blank\" rel=\"nofollow noopener noreferrer\">HBCSE Olympiad<\/a> portal.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Navigating to the \u201cScience Olympiad \/ INO 2026\u201d section.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Downloading the question papers and provisional solutions PDFs.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">These study materials are official. They were released by HBCSE.<\/span><\/li>\n<\/ul>\n<p><b>Note: <\/b><span style=\"font-weight: 400;\">The real answer keys from HBCSE are carefully controlled. This means that any other versions you see outside of the HBCSE site are not valid. You should only trust the answer keys that are on the official HBCSE site.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Tentative Dates for INO Solutions, Comments, Results<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">The Indian National Olympiad exam has a lot of steps. Here are the typical timelines that the Homi Bhabha Centre for Science Education follows for the Indian National Olympiad exam cycle<\/span><\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Event<\/b><\/td>\n<td><b>Tentative Date<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">INO Registration Start<\/span><\/td>\n<td><span style=\"font-weight: 400;\">6 January, 2026<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">INO Registration Last Date<\/span><\/td>\n<td><span style=\"font-weight: 400;\">17 January, 2026<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Admit Card Release<\/span><\/td>\n<td><span style=\"font-weight: 400;\">23 January, 2026<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">INAO Exam<\/span><\/td>\n<td><span style=\"font-weight: 400;\">31 January, 2026 (9 AM to 12 PM)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">INChO Exam<\/span><\/td>\n<td><span style=\"font-weight: 400;\">31 January, 2026 (1:30 PM to 4:30 PM)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">INJSO Exam<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 February, 2026 (9 AM to 12 PM)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">INPhO Exam<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 February, 2026 (9 AM to 12 PM)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">INBO Exam<\/span><\/td>\n<td><span style=\"font-weight: 400;\">1 February, 2026 (1:30 PM to 3:30 PM)<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Answer Key Release<\/span><\/td>\n<td><span style=\"font-weight: 400;\">3 to 8 February, 2026<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Final Result Declaration<\/span><\/td>\n<td><span style=\"font-weight: 400;\">6 March, 2026<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>How to Use the INO Answer Key<\/h2>\n<ul>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Compare your responses against the official answers provided by HBCSE.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">Try to figure out what score you might get before they tell you the result. You can estimate your score to get an idea of how you did. Estimate your score before the official result is announced.<\/span><\/li>\n<li style=\"font-weight: 400;\" aria-level=\"1\"><span style=\"font-weight: 400;\">You have to look carefully for any mistakes. The thing is, HBCSE allows students to submit comments on answers when the comment window is open. This means students can tell HBCSE what they think about the answers during this time.<\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">Subject-wise INO Answer Keys<\/span><\/h2>\n<h3>Physics (INPhO) Answer Key 2026<\/h3>\n<p><span style=\"font-weight: 400;\">Students who appeared for the Indian National Physics Olympiad can download both the English and Hindi question papers along with comprehensive solutions. The INPhO examination was held on Sunday, February 1, 2026, from 9:00 AM to 12:00 noon.<\/span><\/p>\n<h3>Chemistry (INChO) Answer Key 2026<\/h3>\n<p><span style=\"font-weight: 400;\">The Indian National Chemistry Olympiad answer key is now live on the official HBCSE portal. The exam was conducted on Saturday, January 31, 2026, in the afternoon session from 1:30 PM to 4:30 PM.<\/span><\/p>\n<h3>Biology (INBO) Answer Key 2026<\/h3>\n<p><span style=\"font-weight: 400;\">Biology olympiad participants can access their answer key and proposed solutions. The INBO examination took place on Sunday, February 1, 2026, from 1:30 PM to 3:30 PM.<\/span><\/p>\n<h3>Astronomy (INAO) Answer Key 2026<\/h3>\n<p><span style=\"font-weight: 400;\">The Indian National Astronomy Olympiad answer key has been published with detailed solutions. This exam was held on Saturday, January 31, 2026, from 9:00 AM to 12:00 noon.<\/span><\/p>\n<h2><span style=\"font-weight: 400;\">Why Official HBCSE Keys Matter<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Official answer keys from HBCSE are important because:<br \/>\n<\/span><\/p>\n<ul>\n<li><span style=\"font-weight: 400;\">Students can figure out their scores before the results are out. The students have an idea of what their scores will be before they get the results. Students are able to estimate their scores before they find out the results.<\/span><\/li>\n<li><span style=\"font-weight: 400;\">Students have a chance to say something is not right or to make a comment if a solution does not seem correct. They can raise comments or objections about the solution if it appears incorrect.\u00a0<\/span><\/li>\n<li><span style=\"font-weight: 400;\">These keys are really important because they decide who gets to go to the stage, which is the Orientation-cum-Selection Camps or OCSCs for short. <\/span><\/li>\n<\/ul>\n<h2><span style=\"font-weight: 400;\">FAQs<\/span><\/h2>\n<h3>Q1. Has the official INO 2026 answer key been released?<\/h3>\n<p>Yes. The official INO 2026 answer keys and solutions have been released by HBCSE (TIFR) for all subjects after the completion of the exams.<\/p>\n<h3>Q2. Which subjects in INO 2026 answer keys are available?<\/h3>\n<p>The official INO 2026 answer keys are available for all Science Olympiad subjects, including INAO (Astronomy), INChO (Chemistry), INPhO (Physics), INBO (Biology), and INJSO (Junior Science).<\/p>\n<h3>Q3. Where can I download the official INO 2026 answer key PDFs?<\/h3>\n<p>Students can download the official INO 2026 answer key PDFs only from the HBCSE Olympiad official website, where subject-wise question papers and solutions are published.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>The Indian National Olympiad 2026 was the stage of India&#8217;s Science Olympiad program. This program is really important for science students in India. The Homi Bhabha Centre for Science Education, which is part of TIFR, organised the Indian National Olympiad 2026 for science subjects. These subjects included Astronomy, Chemistry, Physics, Biology and Junior Science. The [&hellip;]<\/p>\n","protected":false},"author":63,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[26],"tags":[],"class_list":["post-295670","post","type-post","status-publish","format-standard","hentry","category-olympiad"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>INO 2026 Answer Keys Released \u2013 Official Solutions for All Subjects<\/title>\n<meta name=\"description\" content=\"INO 2026 official answer keys are now available. 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