Subscription fee ranges from Rs 5,000 to Rs 76,000 +GST Based on the plan

eR4u has 1 year and Lifetime validity plans.

Yes, eR4u has lifetime validity plans both in online and offline version, For more info see: feature&pricing.php

Yes, every plan has different Renewal & AMC charges for more info see: feature&pricing.php

You need to renew your Subscription to enjoy the continued services as per the renewal & AMC based on the plan

You can upgrade to any plan at any time by paying the difference amount on pro Rata basis. You cannot downgrade the plan.

No