Hi Suman,
After my post here, I decided to try few more budget iem's. Bought kz atr and superlux 381(bass version, not flat one). Have been using kz atr for a few weeks now with my pc(xonar dg card) and I like it. I am not too comfy with sound signature of 381 especially vocals, purely personal preferenc. On the other day I saw remax 600m on amazon for 550rs(500+50rs shipping). Was sceptical initially about its genuinity. Package recieved yesterday. It looks genuine. It's definitely a keeper, from my initial impressions.
38 ohm impedance as per spec, might need to be amped. It sounded feeble on my mobile xiaomi 4i when compared to pc with xonar dg(32-64ohm profile).
My noob impressions in noob terms:
Personal preferences, take it with grain of salt.i dont like signature of 381 much,so I maybe biased.
Aggressive 600m>381>>atr(more laidback)
Bass in terms of boominess.frankly none of the 3 are bass-heads in my terms. Atr>600m>381
Detail n separation. 600m>>381>>atr
Still trying to find good fit with 600m. Fit is great with atr, might be bcoz of over the ear. 381 fit is good,maybe due to odd shape.
Atr sounds laidback n smooth, maybe due to lack of details n power compared to rest.
600m sounds aggresive,clear but might sound sibilant when compared to rest.
Just wanted to say thanks for the recommend and to inform others about the low price.