Look at cookware first. Prestige, both Pigeon models, Bajaj and Havells all say a wide range of utensils works. Pigeon Radiant is the only one that names earthen cookware. Prestige names metals and ceramic and asks for flat bottoms.
Look at control next. Bajaj gives 11 power levels. The Pigeon models give adjustable wattage. Havells gives a 3-hour timer.
Then compare protection. Havells lists 6 kV surge protection. Pigeon lists shut-off, overheat protection and cool-touch surfaces. Many pages say nothing about surge protection.
For wattage-led lists, see the best induction cooktop 2000 watt and best low-wattage induction cooktop guides. The best induction cooktop with safety features guide covers protection. The best induction cooktop brands guide compares makers. The best induction cooktop guide covers the category.
A kitchen that cooks in many metals can start with the Prestige PIRC 1.0 2200 Watts Infrared Cooktop. It lists soft-touch buttons, a temperature knob and a built-in timer. The page gives no count for its Indian presets.
A cook who grills has four routes. The Pigeon Eva Infrared Induction Cooktop 2000 Watts and the Pigeon Radiant Infrared Cooktop 2000 Watt include a grill for barbecue or tandoor. The Bajaj IRX 220F comes with a BBQ griller set and two SS skewers. The Havells 2200 Watt Infrared Induction Cooktop includes an SS304 food-grade grill with skewers.
Warranty is steady at one year for every model that gives a figure. Pigeon limits its warranty to manufacturing defects. Glen gives no period at all.
Timers and displays differ. Havells lists a 3-hour timer and a digital LED display. Prestige lists a built-in timer. Bajaj lists adjustable time and temperature settings and an error code display. The Pigeon pages list a smart timer, and the Glen page lists no timer. Surge protection appears only for Havells, at 6 kV.
The Glen 2200W Infrared Cooktop is the hardest to judge. The product name says 2200W, but the maker's page gives no power spec. It lists three preset cooking functions. Confirm the rest with the seller.