Do not buy those leads. Almost all of them are fake. We(a software development company) tested the system by buying 10 Buy leads to see how their system works. Shockingly, only one of them had a genuine requirement and that too not too serious about conducting any business. The rest didnt even know that a lead was registered against their contact details. They were usually browsing Indiamart website with no interest in any business. For example, I ended up speaking with
a 15yr old who was searching for apps and ended up on the wrong website
a villager who was searching on how to fill loan application
a jewellery shop owner who was looking to apply for a shop
an uneducated person who had never heard about Indiamart
two instances where the lead was actually a competitor looking for buyers