Here are the benefits that you get under some of the 28-day prepaid recharge plans of Airtel, Jio and Vodafone:
Airtel's prepaid recharge plans with 28-day validity:
Airtel's Rs 175 prepaid recharge plan
This prepaid recharge plan from Airtel offers 3 GB or gigabytes of data for 28 days.
(Airtel’s Rs 175 prepaid recharge plan offers 3 GB data for 28 days.)
Airtel's Rs 199 prepaid recharge plan
This prepaid recharge plan by Airtel offers 1 GB of 3G/4G data for 28 days. It comes bundled with unlimited local, STD and roaming calls, said Airtel on its website, airtel.in. This prepaid recharge plan also offers 100 SMS (short message service) per day. The plan is meant for non-commercial use only.
Airtel's Rs 349 prepaid recharge plan
Airtel's Rs 549 prepaid recharge plan
This prepaid recharge plan of Airtel offers 2.5 GB 3G/4G data per day for 28 days. Local, STD, roaming incoming and outgoing calls as well as local and national SMSes are unlimited under this prepaid recharge plan.
Airtel Rs 129 prepaid recharge plan
This prepaid recharge plan of Airtel offers 220 local and STD minutes on mobile and landlines.
Airtel Rs 145 prepaid recharge plan
This prepaid recharge plan of Airtel offers 300 MB (megabytes) of 3G/4G data on 4G-enabled handsets and 45 MB for other handsets. It also offers unlimited local and STD Airtel mobile calls.
(Airtel's Rs 145 prepaid recharge plan offers 300 MB of 3G/4G data on 4G-enabled handsets.)
Airtel Rs 149 prepaid recharge plan
This prepaid recharge plan of Airtel offers 300 MB of 3G/4G data on 4G-enabled handsets and 50MB on other handsets. It also offers unlimited local and STD Airtel mobile calls.
Airtel Rs 169 prepaid recharge plan
This prepaid recharge plan of Airtel offers 500 MB of 3G/4G data per day for 28 days on Airtel partnered new 4G handsets and for 14 days for other handsets. Local and STD calls are unlimited in this plan.
Jio's prepaid recharge plan with 28-day validity

(Jio voice calls are free and unlimited across all its plans.)
Jio's Rs 149 prepaid recharge plan
This prepaid recharge plan by Jio offers 0.15 GB data per day for 28 days, according to its website jio.com. Local, STD and roaming calls are free and unlimited across all operators. Data at high speed is offered up to 4.2 GB, after which the speed will be reduced to 64 Kbps. Local, STD and roaming SMSes are capped at 300.
Jio's Rs 799 prepaid recharge plan
This prepaid recharge plan by Jio offers 3 GB data per day for 28 days. Data at high speed is offered up to 84 GB, after which the speed will be reduced to 64 Kbps. Local, STD and roaming calls as well as SMSes are free and unlimited across all operators.
Vodafone's prepaid recharge plans with 28-day validity:

(Vodafone’s Rs 348 prepaid recharge plan offers 1.5 GB data per day for 28 days.)