Você não está tecnicamente em trânsito, já que precisa atravessar a imigração, pegar suas malas e fazer o check-in e embarcar em seu próximo voo.
Para fins de vistos, isso não é considerado trânsito, mas uma jornada ponto-a-ponto. Suas exigências seriam as mesmas se você estivesse hospedado por 1 hora ou 10 dias desde que você está atravessando a imigração.
Como cidadão australiano, você tem direito ao acesso sem visto à Malásia por 90 dias.
Aqui está o texto exato da Timatic, o banco de dados que as companhias aéreas usam para confirmar os requisitos de visto.
Destination - Malaysia (MY)
Passport Passport required.
Passport Exemptions:
Nationals of Australia with an emergency passport.
Document Validity:
Passports and other documents accepted for entry must be valid for a minimum of 6 months from the arrival date.
Admission and Transit Restrictions:
Visitors must hold return/onward tickets.
Minors:
Minors up to and including 15 years of age may be listed in an accompanying adult's passport.
Warning:
Passengers with an APEC Business Travel Card must travel with a passport. The passport number and nationality must match those stated on the card.
Passports and passport replacing documents of all non-Malaysian nationals must contain at least 1 unused page for entry/departure endorsements by Malaysian Immigration Service. This does not include the page reserved for "Observations" or "Amendments and Endorsements".
Visa
Visa required.
Visa Exemptions: Nationals of Australia for a maximum stay of 90 days. Passengers with an APEC Business Travel Card valid for travel to "MYS" . The card is valid for the countries listed on the back of the card.
Additional Information: Visitors are required to hold proof of sufficient funds of at least USD 100.- per day to cover their stay.
Students attending a University or College in Malaysia can obtain their visa once they are in Malaysia to cover the study period. It is required to hold all documentation confirming placement and those attending private Universities or Colleges must be met by a representative.
Para a Índia, você precisará de um visto com antecedência.
E-visas can be obtained before departure at https://indianvisaonline.gov.in/. Passengers using their e-visa for the first time must have a passport with at least 2 unused visa pages and a printed confirmation of the Electronic Travel Authorization (ETA). On their first entry with the ETA, the Immigration officer stamps the e-visa in the passport with the expiry date of the visa and the number of entries allowed. Once the e-visa is expired or the authorized number of entries have been used, a new ETA must be obtained for a new e-visa.