Top seed Ruthvika thrashed Thailand's Supamart Mingchua, seeded second, 21-9 21-6 in just 26 minutes, while sixth seed Lakshya beat compatriot Chirag Sen 21-18 21-15 in a 27-minute clash.
In men's doubles, Indian pair of Krishna Prasad Garaga and Satwiksairaj Rankireddy beat Thailand's Warit Sarapat and Panachai Worasaktyanan 21-15 21-17 to win the crown.
Indian mixed doubles combine of Chirag Shetty and Sanjana Santosh also came close to clinching the title before finishing second best after losing 13-21 19-21 to top-seeded Indonesian pair of Ramadiansyah Andika and Mychelle Crhystine Bandaso.