REGION NN

KPI SIGN OFF SHEET FOR THE MONTH OF April 2005(From 26th of March 2005 to 25th of April 2005)

PARAMETERS KPI TARGET KPI ACHIEVEDMetro/Circle CIRCLE N

Total Equipped Capacity (as on 25th of the month)No. of Macro SitesNo.of Micro SitesNo. of IBS.CellsTotal TRXsNo. of EDGE TRXsTRXs with 2TS for dataEquipped Erlangs

Traffic (NBH)Full Rate TrafficHalf Rate TrafficTotal Traffic

Traffic (BBH)Total Traffic

UtilizationSwitch BHCA Utilization ( during Switch NBH) <=80%

Network Wide KPI's (NBH)Random Access Success Rate % >=98SDCCH Blocking % <=0.5SDCCH Time Congestion % <=0.3SDCCH Drop % <=1.2TCH Blocking % <=1TCH Time Congestion % <=1.4TCH Assignment Success Rate % >=97TCH Drop % <=2Handover Success Rate % >=97Network Availability (Radio)% >=99.97

Cell Wise KPI % ( Cell Busy Hour)Random Access Success Rate >=95 % >95/90SDCCH Blocking <=1 % >95/90SDCCH Time Congestion <=0.85 % >95/90SDCCH Drop <=2.5 % >95/90TCH Blocking <=3 % >95/90TCH Time Congestion <=3 % >95/90TCH Assignment Success Rate >=95 % >95/90TCH Drop <=3 % >95/90Handover Success Rate>=95 % >95/90

Switch KPI'sPeak Processor Load (MSCs/BSCs) % <80Paging Success Rate (NBH) % >=92Location Update Success Rate (NBH) % >=97Successful Call Rate (24 Hrs) % >99Network Availability (Switch/IN/GPRS)% >99.99

Data KPI'sRound trip time <=700 msAttach Success Rate excluding Unregistered Subs. % >=99PDP context activation success rate (Only NW Cause codes) % >=99Gb Utilisation % <=70% blocking of data channels on air interface % <=2

GPRS KPIsAverage UL throughput per TBF >=20 kbpsAverage DL throughput per TBF >=30 kbps

EDGE KPIsAverage UL throughput per TBF >=30 kbpsAverage DL throughput per TBF >=45 kbps

Voice QualityVoice Quality (MOS) in all cells during NBH * >=3.8

*SQS Target value is - 90% of cells having percentage of GOOD samples >90%

For Ericsson India Pvt Ltd For Bharti Televentures LtdHead - Design & Planning - Authorised Signatory Network Quality-Authorised Signatory

For Bharti Televentures India Pvt Ltd For Bharti Televentures LtdHead - Commercial - Authorised Signatory Network Quality Head - Authorised Signatory

S.No. Cell Name RBS Type No.of TRX Timeslot dedic Timeslot de Timeslot dedActual Voice1 ABCDEFG RBS 2206 4 1 2 2 272 ABCDEFG RBS 2206 4 1 2 2 273 ABCDEFG RBS 2206 4 1 2 2 274567

Actual Equipped Capacity19.2719.2719.27

Exclusion form the Performance Target MeasurementsResponsible 26-Mar-05

Sat

1 Force Majeure. TAC

2 TAC

3 TAC

4 Planned downtime for maintenance or installation TAC

5 TAC

6 TAC

7 ND/NPIS

8 ND/NPIS

11 ND/NPIS

12 ND/NPIS

13 Problems caused by faulty end-user (subscriber) equipment. ND/NPIS

14 ND/NPIS

15 ND/NPIS

16 ND/NPIS

17 Other Regulator related decisions ND/NPIS

18 ND/NPIS

19 ND/NPIS

20 SWITCH

20 BTSOL / POI media down and others ND/NPIS

21 Counter Problem

Equipment or services not agreed as part of the scope as set out in exhibit 4 (Responsibility Matrix) and any impact on associated nodes or services.

Faults caused by activities associated with network alterations, unless the network alteration has been approved by this service or is performed on instructions provided by this service

Hardware (HW) and software (SW) design problems not in the Ericsson scope.

Faults attributable to non-Ericsson personnel but limited to the actual part of down time that was caused by Bharti’s personnel.

Change Requests that are a part of Bharti’s responsibility and that have a direct impact on the agreed KPIs, and have not been implemented in the agreed time frame.

Network Implementation slower than planned caused by Bharti’s subcontractors, such as site acquisition, civil works, etc.

Changes in traffic distribution (more than 25% deviation over and above the normal traffic variations) with respect to planned coverage.

Sudden Tariff plan changes without information to Ericsson and prior preparation.

Site access problems (problems with access to buildings and authorities, payment issues).

External interference problems (from other cellular systems or other sources).

Cells that face unforeseen usage spurts (to mutually agreed upon after the event).

Any sudden traffic increase on account of any new schemes that may shoot up the processor load viz. Free calls to mobiles etc., are to be excluded from the measurements.

Special days like new year’s eve, pre-Diwali peak and unforeseen circumstances such as acts of god, terrorism etc. will be excluded from KPI measurements. (note: exact dates to be specified and mutually agreed)

KPI for Successful Call Rate (Switch Side) is agreed to be >=99% subject to the following exclusions: - Problems on equipments / routes outside of the Ericsson MSC's under the purview of the contract. -Any aberrations in the non-Ericsson equipment supplying inputs to MSC's, such as power supply, transmission (excluding Ericsson managed transmission) etc.

27-Mar-05 28-Mar-05 29-Mar-05

Sun Mon Tue

30-Mar-05 31-Mar-05 1-Apr-05 2-Apr-05

Wed Thu Fri Sat

3-Apr-05 4-Apr-05 5-Apr-05

Sun Mon Tue

6-Apr-05 7-Apr-05

Wed Thu

8-Apr-05 9-Apr-05

Fri Sat

10-Apr-05 11-Apr-05 12-Apr-05 13-Apr-05

Sun Mon Tue Wed

14-Apr-05 15-Apr-05 16-Apr-05 17-Apr-05

Thu Fri Sat Sun

18-Apr-05 19-Apr-05 20-Apr-05 21-Apr-05

Mon Tue Wed Thu

22-Apr-05 23-Apr-05 24-Apr-05 25-Apr-05

Fri Sat Sun Mon

FORMULAE

PARAMETERS KPI TARGET FORMULAEMetro/Circle

Total Equipped Capacity (as on 25th of the month)SitesCellsTotal TRXEDGE TRXErlangs

Incremental Capacity added during the monthNo. of BTS sites installed during the monthNo. of Erlangs installed during the month.No. of EDGE TRXs installed during the month

Traffic (NBH)Full Rate TrafficHalf Rate TrafficTotal Traffic

Traffic (BBH)Total Traffic

UtilizationSwitch BHCA Utilization ( during Switch NBH) <=80%

Ericsson to provide measurement process

Network Wide KPI's (NBH)Random Access Success Rate % >=98 100 - (RAACCFA/(CNROCNT + RAACCFA))SDCCH Blocking % <=0.5 100 * ( CCONGS/CCALLS)SDCCH Time Congestion % <=0.3 100 * (CTCONGS/ (PERLEN * 60))SDCCH Drop % <=1.2 100 * (CNDROP - CNRELCONG)/CMESTABTCH Blocking % <=1 100 * (CNRELCONG + TFNRELCONG+THNRELCONG) / TASSALLTCH Time Congestion % <=1.4 100 * ( TTCONGS / (PERLEN * 60))TCH Assignment Success Rate % >=97 100 * (TCASSALL)/ (TASSALL)TCH Drop % <=2 100 * TNDROP/TCASSALLHandover Success Rate % >=97 100 * ((HOVERSUC + HORTTOCH)/ HOVERCNT))

Network Availability (Radio)% >=99.97

Cell Wise KPI % ( Cell Busy Hour)Random Access Success Rate >=95 % >95/90 100 - (RAACCFA/(CNROCNT + RAACCFA))*100SDCCH Blocking <=1 % >95/90 100 * ( CCONGS/CCALLS)SDCCH Time Congestion <=0.85 % >95/90 100 * (CTCONGS/ (PERLEN * 60))

SDCCH Drop <=2.5 % >95/90 100 * (CNDROP - CNRELCONG)/CMESTABTCH Blocking <=3 % >95/90 100 * (CNRELCONG + TFNRELCONG+THNRELCONG) / TASSALL

TCH Time Congestion <=3 % >95/90 100 * ( TTCONGS / (PERLEN * 60))TCH Assignment Success Rate >=95 % >95/90 100 * (TCASSALL)/ (TASSALL)

TCH Drop <=3 % >95/90

Handover Success Rate>=95 % >95/90

Switch KPI'sPeak Processor Load (MSCs/BSCs) % <80 Maximum of Peak value of the Processor loadsPaging Success Rate (NBH) % >=92 100 * ((NLAPAG1RESUCC +NLAPAG2RESUCC)/NLAPAG1TOT)Location Update Success Rate (NBH) % >=97 100 * (NLALOCSUCC/NLALOCTOT)

Successful Call Rate (24 Hrs) % >99

Network Availability (Switch/IN/GPRS Nodes)% >99.99

Nodes are PPAS,SDP,SCP,IVR,MSC,HLR,BSC,SGSN,GGSN

Data KPI's

Round trip time <=700 ms

Attach Success Rate excluding Unregistered Subs. % >=99

>=99

Gb Utilisation % <=70 Ericsson to provide measurement process% blocking of data channels on air interface % <=2 Ericsson to provide measurement process

GPRS KPIs

Average UL throughput per TBF >=20 kbps ULBGGTHR / ULBGGDATA

Average DL throughput per TBF >=30 kbps DLBGGTHR / DLBGGDATA

EDGE KPIsAverage UL throughput per TBF >=30 kbps ULBGEGTHR / ULBGEGDATAAverage DL throughput per TBF >=45 kbps DLBGEGTHR / DLBGEGDATA

Voice QualityVoice Quality (MOS) in all cells during NBH >=3.8

SQS Target value is - 90% of cells having percentage of GOOD samples >90%

For Ericsson India Pvt Ltd For Bharti Televentures LtdNetwork Quality-Authorised Signatory Network Quality-Authorised Signatory

100 * (No of days * 24 * 60 * Total No of BTS – Summation of Downtime of BTS) / (No of days * 24 * 60 * Total No of BTS) where: No of days = total no of days in

the month; 1 day = 24 hours, 1 hour = 60 mins; Downtime = total unplanned BTS outage in mins

100 * TNDROP/((TCASSALL + (SUMIHOSUCC-SUMIABSUCC-SUMIAWSUCC)-(SUMOHOSUCC-SUMOABSUCC-SUMOAWSUCC))

100 * (SUMOHOSUCC+SUMOHOREV+SUMEOHSUCC+SUMEOHREV) / (SUMOHOATT + SUMEOHATT)

100 * (No of days * 24 * 60 * Total No of Nodes – Summation of Downtime of Nodes) / (No of days * 24 * 60 * Total No of Nodes) where: No of days = total no

of days in the month; 1 day = 24 hours, 1 hour = 60 mins; Downtime = total unplanned Node outage in mins

The ping program is a suitable method for measuring RTT. Either a DNS server or an external Internet server can be pinged by the MS PING SIZE - 32BYTE

100 * [1-((gprsMmSgsnUnsuccAttReq - gprsMmSgsnUnsuccAttReqCC7/8/14) / gprsMmSgsnAttReq)]

PDP context activation success rate (Only NW Cause codes) %

100 * gprsSmSgsnSuccActivations / (gprsSmSgsnSuccActivations +gprsSmSgsnUnsuccActivations)

100)21(

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