Android

After rolling out the Android 4.3 (Jelly Bean) update in the UK last week, HTC has started rolling out the update in India. The update started rolling out in Taiwan back in September, and the UK users got v3.62.401.1. Update for the Indian users has the version number 3.63.707.4. The new update brings Android 4.3 and Sense 5.5. The update is also reportedly rolling out in Vietnam.
Here is the changelog of the update

System improvements

• Android 4.3 and HTC Sense 5.5 update

Video Highlights improvements

• Updated interface
• Add soundtracks to videos

BlinkFeed improvements

• Access recommended news from your social network
• Additional global news sources
• Save articles to read later or offline
• Create custom feeds from news media, Twitter and YouTube

Music improvements

• Updated interface
• Embedded music channel with new scenes

Sense TV improvements

• Updated interface
• Add My Picks Page to improve program management

The update is available Over-the-Air (OTA).  The size of the update is 704.42MB. You can go to Settings > About > Software Updates > Check now to check for the updates,