The Zopo Speed 8 was earlier expected to be launched in the country in July.
The Samsung Galaxy On7 comes in black and Gold colour options.
HTC Sailfish features a rear-mounted fingerprint sensor and USB-C port at the bottom.
Sony had announced its X series smartphones - Xperia X and Xperia XA earlier this month.
The smartphone is confirmed to have a 16-megapixel front-facing camera with moonlight flash.
Xiaomi Mi 5, which was launched in India in April this year, is available for Rs 24,999 for the 3GB RAM/32GB storage variant.
Oppo Find 9 recently surfaced in press images.
The smartphone comes in 3 different color options- Metal Grey, White, and Champagne.
The official confirmation on the launch event is expected by June 25.
Oppo A37 will be available in two colours - Grey and Gold.