Dear Komel Adil
As far as germination of Cherry Tomatoes seeds their are number of factors.
Days: 10 to 15 days
Weather Temp day 27 to 22, night temp 16 to 12
At least 6 to 8 hours morning sunlight
Seed Quality: Fresh seeds easy to germinte not only 10 days but also 7 days.
Finally your soil preparation.
Kindly check above conditions and inform me about date of sow.
Best Regards
Asim