https://paytm.com/shop/g/electronics/computers-accessories/computer-accessories/data-cards
Use Promo Code CNET40 and get 40% cashback. Max 3 items per order, 3 orders per user. Max Cashback Rs. 4000. COD option not available on applying this Promo code.
Examples:-
iBall 21.0MP-58 21Mbps 3G Data Card Rs 725
https://paytm.com/shop/p/iball-21-0mp-58-21mbps-3g-data-card-COMIBALL-21-0MPSANS346912DB3F4C5
D-Link DWP-157 21mbps Data Card (White) Rs 719
https://paytm.com/shop/p/d-link-dwp-157-21mbps-data-card-white-COMD-LINK-DWP-1QUIC4313324D8424C
Wayona 7.2 mbps USB Modem Data Card (White) Rs 479
https://paytm.com/shop/p/wayona-7-2-mbps-usb-modem-data-card-white-COMWAYONA-7-2-MWAYO243305BBD43F9
Netgear AC327U Data Card Rs 570
https://paytm.com/shop/p/netgear-ac327u-data-card-NETGEAR_AC327U_NULL_NULL_24993
ZTE MF197 14.4 Mbps 3G/2G Data Card (White) Rs 491
https://paytm.com/shop/p/zte-mf197-14-4-mbps-3g-2g-data-card-white-COMZTE-MF197-14UNIG40655E05CD675

Extra 30% Cashback on Data Cards at Paytm
https://paytm.com/shop/g/electronics/computers-accessories/computer-accessories/data-cards

Use Promo Code CNET30 and get 30% cashback. Max 2 Items per order, 2 orders per user. Max Cashback Rs. 1200. COD will not be available on applying this Promo code.