Rental agreement mistake

Hi, My tenant got a rental agreement of shop prepared in which he included electricity charges under the monthly rental(7000 including electricity), which is obviously incorrect. I signed the agreement without reading it. So he was trying to trick me by ediiting this part. However, he made a mistake and he got the year to agreement(11 months) edit to 20025(twenty thousand something). I am sure tenant will not be willing to edit the Rs.7000 mistake as he has done it deliberately. Question : Can the agreement be considered as null/invalid altogether since the edited date/year is invalid "20025 & my mistake will be neutralized? Note : Tenant was defintely trying to trick me by 7000 mistake and hence he made that 20025 mistake as well, deliberately. Thanks Abhishek