Lenovo K3 Note is a good budget mobile phone. Its dual sim that supports 4G, 1.7 GHz Processor with 2 GB RAM, 16 GB Internal Memory, 5.5 inch Full HD display, 13 MP rear and 5 MP front camera, It has almost all the sensors, 2900 Mah battery, dolby atoms all within a weight of 150 gms.
If we look at the features and evrything within Rs.10000/- is a good deal.
But I personally feel instead of going for K3 just increase your budget Rs2000/- extra and go for a 3Gb RAM with 3300 Mah battery in same lenovo K4 note.
Lenovo K3 note is just missing the above two things otherwise it could have been a better phone. The 2 GB RAM may not be sufficient to play high end games. Thats the only reason I will not prefer K3. But if you are not into games then its a good buy within Rs.1000/-