The OP has not posted the reasons for refusal ad verbatim.... which reads as (and which
Scylla has correctly interpreted):
You have not satisfied me that you would leave Canada at the end of the period authorized for your stay.
In reaching this decision, I considered several factors, including:
Among the various boxes for refusal that the visa officer has ticked the box:
your family ties in Canada and in your country of residence
The refusal letter does not specifically use words such as "does not have enough ties in Canada".... or "have strong ties in Canada"
A visa officer will base his/her decision on the *balance of probabilities*..... having more immediate family/close family members in Canada than in India (in this case an only child) could indicate the probability to overstay a visit.... hence, the *family ties* reason for refusal.
Other strong ties to the home country should have been demonstrated to avoid a refusal
Thanks for clarifying.... Just when you responded i was about to say, lets ask Bryanna...