Doubtnut was acquired by Allen Career Institute for about $10 million in December 2023, less than a tenth of the $121 million post-money valuation it reached in February 2021 and far below the up-to-$150 million Byju's reportedly offered in 2020.
Doubtnut, founded by Tanushree Nagori and Aditya Shankar, built a doubt-solving app for school math and science students. It raised more than $52 million from Tencent, Sequoia Capital India (now Peak XV) and others. Its story is a clean case study of India's edtech boom and bust: fast usage growth, revenue that never caught up with costs, and an exit at a fraction of its peak price.

Doubtnut Valuation: Peak, Offer and Sale Price
"Allen Career Institute has acquired Doubtnut in a deal that values the young edtech at $10 million," TechCrunch reported on December 4, 2023, adding that Doubtnut had raised more than $52 million and that Byju's had tried to buy it for as much as $150 million in mid-2020. Entrackr described it as a stress deal. Allen had been valued at over $1 billion after a $600 million investment from Bodhi Tree, the fund of James Murdoch and Uday Shankar, per the same TechCrunch report.
Doubtnut Funding History
| Date | Event | Amount | Valuation | Investors / source |
|---|---|---|---|---|
| Jan 2020 | Series A | $15M | Not disclosed | Tencent (lead), Omidyar Network India, Akatsuki, Sequoia Capital India, Ankit Nagori (Inc42) |
| Mid-2020 | Byju's acquisition talks | ~$130M, cut to $80-90M (Entrackr); up to $150M (TechCrunch) | — | No deal signed |
| Feb 2021 | Series B | Rs 183.3 cr ($25M) | $121M post | SIG, Sequoia Capital, WaterBridge Ventures, ON Mauritius (Entrackr) |
| Apr 2023 | Internal round, convertible notes | $2.5M (Rs 20 cr) | Not disclosed | Sequoia, Omidyar, WaterBridge (Entrackr) |
| Dec 2023 | Acquired by Allen Career Institute | — | ~$10M | TechCrunch |
TechCrunch puts total funding at more than $52 million. The Series B was first reported at $25 million; later reports put the full round higher, so the rows above do not sum to the total.
Why Did Doubtnut's Valuation Fall?
Costs ran far ahead of revenue. "Doubtnut's revenue from operations grew 5.3X to Rs 10.83 crore during FY22 with mounting losses of Rs 179.24 crore," Entrackr reported on March 14, 2023, from filings. Total expenditure rose 84.8% to Rs 194.47 crore in FY22 from Rs 105.25 crore in FY21. In other words, Doubtnut spent about Rs 18 for every rupee of operating revenue that year.
The company then cut hard. Monthly expenses fell from Rs 10.6 crore in March 2022 to Rs 2.2 crore in March 2023, and it reported FY23 revenue of Rs 26.6 crore, Entrackr reported on April 10, 2023, as existing investors put in $2.5 million through convertible notes. Eight months later the company sold to Allen.
Is Doubtnut Still Operating in 2026?
Yes, as part of Allen. As of October 20, 2026, Doubtnut's doubt-solving content is served under Allen's website at allen.in/dn. Doubtnut has no separate funding or valuation since the acquisition, and Allen has not disclosed Doubtnut's revenue. Data-aggregator figures for Doubtnut's FY24 and FY25 circulate online, but we could not match them to a filing, so we do not use them.
What Investors Can Learn From Doubtnut
Doubtnut's cap table shows the cost of passing on an early exit. Byju's reported interest at up to $150 million in 2020 was worth roughly three times everything investors later put in, and about 15 times the final sale price. Free consumer usage in Indian test prep proved hard to convert to paid revenue, and after the cuts the company did not raise a new priced round before selling. For how venture investors think about downside cases like this, see our startup valuation calculator.
Where I Could Be Wrong
The Byju's figures are reported, not signed terms, and two outlets give different numbers ($130 million cut to $80-90 million, versus as much as $150 million). The $10 million deal value is as reported by TechCrunch; Indian outlets described it in rupees, and neither Allen nor Doubtnut published full terms.
More startup valuations, exits and funding data at Value Add VC.
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