Reliance recently achieved 100 million customers mark becoming the 2nd largest operator in the country and 4th largest telecom operator in the world. To celebrate this achievement, Reliance has announced free unlimited calling between all reliance numbers across the country (both local and STD) on March 28th. It means, if you are a reliance customer, you can make unlimited free calls to any reliance number in India (both reliance hello and reliance mobile) without having to pay even a single penny.
This offer will be available between 0001 hours and 2359 hours (00:01 AM – 11:59 PM) on March 28 – Sunday for all Reliance landline (hello) and mobile (Prepaid and postpaid) customers. To avail this offer, prepaid customers need to have a minimum balance of Rs 10 on their account.
Reliance has also launched a image advertisement for this offer.

[...] 28th March Reliance celebrated 100 million customers milestone by offering unlimited free talk time for all its customers and this time the company is offering a free postpaid GSM SIM card to all its [...]