Airtel has increased the night unlimited topup charges for the old customers to Rs. 199 from the current Rs. 99 :madness: As a freebie, they have increased the unlimited sercive time by one hour, i.e. 8 PM to 8 AM from te current 9 PM to 8 AM. Moreover, if you want to opt for any other plan,the night topup will get deactivated and will not be restored.