Are all your financials in good position ? I think that plays a major role. Did you submit all your transcripts , University consolidated marksheet , Degree Certificate , 12TH Marksheet , 10TH Marksheet? IELTS etc.,
I have submitted all ny marksheet and academic documents except degree certificate because it is issued by my University after 2 years but yes i i have submitted my provisional certificate.
I have submitted my father 3 years itrs. Of around 560000 of each year and i have also submitted my salary slips of 4 months.