Consolidation of suits

file application in the court in which declaration suit is pending for consolidation of other two suits as parties are same in all 3 suits. 

If the subject matter is same and you want consolidation of suits , just file a petition in high court to club the suits and for joint trail of cases to avoid conflicting judgments.

sir 

first suit is between us and defendant one 

second suit is between same parties 

third suit is between us and other defendants 

subject matter is interconnected between the parties sir 

Better to file the petition in High Court to get consolidation orders 

The Civil Procedure Code does not provide for joint trial of suits, though the parties for convenience may agree to that course".

However you can file a petition before the district court praying for joint trial of all suits under section 151CPC

First, based on the limited facts given, it appears that there could be a serious problem. 

Why did one defendant file an injunction suit with respect to property A only? Is he not interested in property B? 

Why did other defendants file an injunction suit with respect to property B only. Are they not interested in property A? 

Probably, you should have filed two separate suits for property A and property B. You should not have clubbed them into a single suit. 

A single suit for both A and B would be meaningful only if all the defendants are interested in both the properties. If one defendant is interested in A only and other defendants are interested in B only, then prima facie it appears that filing a single suit was wrong on your part. 

Prima facie, your suit is likely to be dismissed for the above reason. 

So, please consider the possibility of filing two separate suits for the two properties. The papers have to be studied and examined whether it is too late now. 

But, there is a good chance of your suit getting dismissed completely, or the judge may ask you to choose only one property at the time of trial. Instead of waiting for the judge to say such things at the time of trial, you may consult a couple of good lawyers and check whether you can replace the existing suit with two suits, or file an additional suit and amend the first suit. 

Secondly, coming to your main question, two suits were filed in senior civil judge court and one suit was filed in junior civil judge court. Assuming that all of them are within the same district, you can approach the Court of the PRINCIPAL DISTRICT JUDGE of the district to order joint trial of all the three suits. You will have to file TROP i.e. Transfer Original Petition in the Principal District Court to transfer the suit from Junior Civil Judge Court to Senior Civil Judge Court, so that now all the three suits are in Senior Civil Judge Court and a joint trial can be conducted for all the three suits. 

Please consult multiple lawyers and decide.