If you want an entry level tyre with decent performance and grip then go for Goodyear Assurance Triplemax tyre. If you want something better then go for Bridgestone Turanza ER300. However, if you are looking at an intermediate tyre then MRF ZSLK would be a very good option. It is better than Assurance triplemax but not as good as Turanza.
Bridgestone Turanza ER300 would be a very good tyre for your Vento. This tyre is great for highways as well as city use and offers a good comfortable ride with good performance. However if you want an economical option and the running of your vehicle is not much or majorly subjected to cities then go for Goodyear Assurance Triplemax.
If you want performance oriented tyres for aggressive driving then go for Bridgestone MY02 Sporty Styly tyre or Hankook Optimo ME04 K424 tyre.