Shiva Thapa (56kg) has become the youngest Indian boxer to make the cut for the Olympics. In Astana, Kazakhstan, today, the 18-year old defeated Japan's Satoshi Simizu 31-17 to enter the final and book himself a London berth. The Assam teenager is playing only his second senior international event and was down 6-7 in the opening round. But he turned the tables in the second round, taking a massive 15-6 lead. The final three minutes followed a similar script as Shiva clinched it with ease.A 19-year-old L Devendro Singh had booked his London berth in the last year's World Championships, tying with Debendra Singh (1996 Atlanta) as the youngest Indian boxer to make the Olympics. But the 1993-born Shiva has broken this record. In the 75 kg category, Vijender Singh bowed out after losing in the last-four stage of the Asian Qualifiers. Vijender has already qualified for the London Olympics.