Here is the raw byte sequence in hex

e0 ae b8 cc 87 20 20 20 20 e0 ae a8 e0 ae bf cc a3

This is your browser's rendering

ஸ̇ நி̣

Here is now Safari renders it


Version 9.0.2 (11601.3.9)

Here is how Chrome renders it


Version 49.0.2623.112 (64-bit)