Those with turnover of up to ₹5 crore in the preceding financial year would be required to mandatorily furnish four-digit HSN code on B2B invoices.

WhatsApp is launching a new beta version for Android users to use the new security feature; a 6-digit code to log into WhatsApp on different devices.

With a four digit PIN, there are a possible 10,000 combinations. But with a six digit code, there are 1 million possible combos, making it a lot tougher for someone to crack your security code.

Apple steps up security with native two-factor and 6-digit passcodes in iOS 9 Apple puts two factors front and center to secure accounts in iOS and OS X, while suggesting a longer passcode in iOS 9.

Sale of gold jewellery and gold artefacts hallmarked with only a six-digit alphanumeric HUID -- union identification number -- will be permitted from April 1, the government said on Saturday.